Potential business model for a European vaccine R&D infrastructure and its estimated socio-economic impact

Background Research infrastructures are facilities or resources that have proven fundamental for supporting scientific research and innovation. However, they are also known to be very expensive in their establishment, operation and maintenance. As by far the biggest share of these costs is always borne by public funders, there is a strong interest and indeed a necessity to develop alternative business models for such infrastructures that allow them to function in a more sustainable manner that is less dependent on public financing. Methods In this article, we describe a feasibility study we have undertaken to develop a potentially sustainable business model for a vaccine research and development (R&D) infrastructure. The model we have developed integrates two different types of business models that would provide the infrastructure with two different types of revenue streams which would facilitate its establishment and would be a measure of risk reduction. For the business model we are proposing, we have undertaken an ex ante impact assessment that estimates the expected impact for a vaccine R&D infrastructure based on the proposed models along three different dimensions: health, society and economy. Results Our impact assessment demonstrates that such a vaccine R&D infrastructure could achieve a very significant socio-economic impact, and so its establishment is therefore considered worthwhile pursuing. Conclusions The business model we have developed, the impact assessment and the overall process we have followed might also be of interest to other research infrastructure initiatives in the biomedical field.


Background
Research infrastructures are facilities or resources that have proven fundamental for supporting scientific research and innovation.However, they are also known to be very expensive in their establishment, operation and maintenance.As by far the biggest share of these costs is always borne by public funders, there is a strong interest and indeed a necessity to develop alternative business models for such infrastructures that allow them to function in a more sustainable manner that is less dependent on public financing.

Methods
In this article, we describe a feasibility study we have undertaken to develop a potentially sustainable business model for a vaccine research and development (R&D) infrastructure.The model we have developed integrates two different types of business models that would provide the infrastructure with two different types of revenue streams which would facilitate its establishment and would be a measure of risk reduction.For the business model we are proposing, we have undertaken an ex ante impact assessment that estimates the expected impact for a vaccine R&D infrastructure based on the proposed models along three different dimensions: health, society and economy.

Results
Our impact assessment demonstrates that such a vaccine R&D infrastructure could achieve a very significant socio-economic impact, and so its establishment is therefore considered worthwhile pursuing.

Introduction
Vaccines are amongst the most effective public health tools available to humanity to fight infectious diseases (Greenwood, 2014;Doherty et al., 2016).Outstanding achievements of vaccines include the control or eradication of several previously devastating human and veterinary diseases such as smallpox and rinderpest (both eradicated), the near eradication of poliomielitis, and, importantly, a significant reduction of the global negative consequences of the COVID-19 pandemic on global health, society and economy.Despite these successes, there are numerous gaps and weaknesses in our current vaccine arsenal, and considerable work and innovation is needed to reduce the threat and burden of endemic and emerging infectious diseases, as well as to prepare for unknown future threats.However, vaccine development is a time-consuming and complex process that involves progression through various phases, from discovery and preclinical research to clinical development and large scale manufacturing of the final vaccines.All these steps require significant financial resources and broad technical capabilities.Development of vaccines is also very unpredictable as vaccine candidates can fail during any of the above-mentioned, increasingly expensive stages.On average, less than 1 out of 10 vaccine candidates in preclinical development eventually reach the market.
In a previous analysis based on structured feedback from experts, we identified numerous deficiencies in the European vaccine R&D landscape (Jungbluth et al., 2022).Many of these needs could be addressed by a well-designed, public health-driven and sustainable vaccine R&D infrastructure that-by the provision of services, expertise, facilities and other types of support-could foster innovation and scientific advancements in the larger vaccine R&D space (Leroy et al., 2014;IPROVE, 2016).
Research infrastructures (RIs) are physical and organizational structures, facilities, resources, and services that support scientific research and innovation.These infrastructures are designed to provide scientists, researchers, and innovators with the necessary resources, collaborative environments and expertise to conduct cutting-edge research and address complex scientific questions.RIs can vary widely in scope, scale, and focus, but are typically long-term initiatives with lifespans of decades rather than years (OECD, 2019).As the establishment and maintenance of RIs usually involve significant investments from governments, international organizations and private entities, the decision of whether to establish an RI is typically informed by a technical and conceptual feasibility study in which different RI design options are developed and compared, the expected socio-economic impacts (SEIs) assessed, and-eventually-detailed business and implementation plans prepared.In the present article, we describe the outcome of such a design study and SEI assessment for a future European vaccine R&D infrastructure.The aim of the feasibility study is to inform funders, policy and decision makers and other stakeholders about critical infrastructure needs within the vaccine R&D community and to provide a sound basis for evidence-based decision making regarding the establishment of a sustainable vaccine R&D infrastructure.
The feasibility study, including the findings described in the present article, were produced in the context of TRANSVAC (European Network of Vaccine Development and Research).TRANSVAC-an initiative that comprises three vaccine infrastructure projects funded by the European Union (EU) from October 2009 until April 2023-is a distributed, network-based research infrastructure integrating the expertise and facilities of 26 leading research organisations from ten European countries 1 .Provided with a total cumulative funding of approximately 27 million EUR and a focus on prophylactic and therapeutic vaccines for human and veterinary use, TRANSVAC has supported vaccine R&D by developing and optimising scientific-technical services, which were then offered to the vaccine development community at no cost along with cutting-edge training in vaccinology.

Development of business model
Four different business model options were developed using the procedure described below, one of the models was a combination of two individual models developed.In the present article, we only describe the details and expected impacts for the business model option that was prioritized for further development ("hybrid model") following the assessment of all models using the evaluation framework developed (see below).The working steps in the overall process were the following ones:

Defining the scope for business model design options:
To determine what business model options should be considered in the assessment, an evaluation of market needs and of TRANSVAC's current capabilities was conducted to identify key opportunity areas for a future sustainable vaccine RI.In addition to intelligence produced directly by TRANSVAC (Leroy et al., 2014; 1 www.transvac.orgJungbluth et al., 2022;and unpublished), this step included the consultation of pertinent business (IPROVE, 2016) and market intelligence 2,3 , the analysis of different business models used by other existing Ris in the biomedical area (ESFRI, 2021, and references and links therein), and surveys and expert interviews we conducted.The individuals that participated in this process included representatives from all major stakeholder groups considered relevant for this venture, including potential users of a future vaccine RI, funders and finance providers, policy-and decision makers, industry, international organizations, vaccine development alliances, as well as existing Ris in the biomedical area in Europe.

Creating an evaluation framework for assessment:
A list of specific metrics for the quantitative scoring of the business models was developed.The metrics reflect important criteria, including unique selling position; competitive environment; financial upside; sustainability; risks, investment needs; complexity of implementation; capabilities/assets, and others.

Describing details of the design options:
Based on the market gaps, needs and opportunities identified in step 1 (current vaccine market situation), and on the analysis of currently existing/used business models in a range of industries and several successful Ris, different business model archetypes were developed and put forward for further consideration in the next step.

Model evaluation and selection:
Evaluation and selection of the different business model options were carried out using the evaluation framework described.
The entire process as outlined above, including the overall suggested positioning of the sustainable vaccine infrastructure, was performed keeping in mind the gaps and needs previously identified as part of the TRANSVAC project, as well as the objectives, scope and missions of other (European) Ris already existing.

Definition of impact dimensions
To select impact categories for analysis, a literature review on the socio-economic impact assessment practices was made first, followed by a benchmarking of different practices and information (Reid et al., 2015;ESFRI, 2019).Multiple key impact indicators emerged, with three main impact categories aligned with the literature and taking into consideration the following standard metrics: -Health impact: Innovation for vaccine R&D, models developed, tools/technologies/solutions developed, vaccines developed and related data generation (immunological signatures/correlates of protection/efficacy and safety …) -Societal impact: Dissemination activities and new publications, training and education, human resources -Economic impact: Investments to accelerate vaccine development, impact on small-and medium sized enterprises (SMEs), revenues generated.
Applied to the vaccine research infrastructure case, these three dimensions draw a picture of how such an infrastructure would deliver socio-economic impacts, locally, regionally, and globally, and help to better understand how it could fulfil its long-term objectives.Moreover, these categories have in common that they capture general issues having a fundamental impact on a vaccine infrastructure, represent a systematic approach for quantification, and are widely applicable.
The three main dimensions of socio-economic impact that were analysed reflect the impact of vaccines which is broad and far-reaching, though not consistently quantifiable, analysed or communicated.Traditionally, the perceived benefits of vaccinations are to reduce morbidity and mortality from infections, and those remain the drivers for the innovation of new vaccines.However, an increasing appreciation for the economic and societal impact of vaccines is being included in the 2 Pharmaprojects.https://pharmaintelligence.informa.com/products-and-services/clinical-planning/pharmaprojects3 Evaluate.www.evaluate.com/development and assessment of vaccine programmes, as they potentially deliver greater benefits to society (Rodrigues and Plotkin, 2020;Beck et al., 2022).In the assessment we have undertaken, the impacts across the three different dimensions have been estimated for the first 10 years of the RI's period of operation.

Key performance indicators (KPIs)
A series of KPIs was developed that was subsequently used for assessing the ex ante impact of the vaccine RI along the different dimensions described above (Table 1).Eventually, once the vaccine RI is established and operational, the same KPIs could be used for the actual performance monitoring of the venture, as well as for a potential ex post impact assessment.For the actual performance monitoring of the vaccine RI once it is up and running, each KPI would need to be assessed with a specific frequency (quarterly or annually) and using a specific way of data collection (e.g. via operational and economic performance indicators, surveys, interviews, or from other external sources).
For performance monitoring, three categories of key performance indicators (i.e., short-term impact, long-term cumulative impact, and operational metrics) were selected to mirror the progress of the RI in achieving established objectives and goals.With operational metrics, the functioning of infrastructure can be monitored, whereas the short-term impact and long-term cumulative impact indicators enable actual measurement of achievements over time and their communication to key stakeholders.Performance measures include the tracking of economic, societal and other health indicators of impact.These dimensions were chosen as they are also relevant for the mission we propose for a vaccine RI to accelerate vaccine development in the interest of public health and societal benefits.
Initially a larger list of approximately 30 KPIs was drawn up that subsequently was down-selected based on their relevance, credibility, quality as indicators and direct linkage to proposed vaccine R&D RI's objectives.The KPIs have two major functions: firstly, they should quantify generated impact on a higher level to enable addressing a broader set of audiences and secondly, they should enable management of the specific areas on a more granular level.

Impact assessment: Data sources and assumptions
Table 2 summarises the data sources and assumptions that were used for the estimation linked to the KPIs selected.For a complete list containing all KPIs please see Table 1.

(i) Proposed business model for a European vaccine R&D infrastructure
The gaps-and-needs assessment of vaccine R&D in Europe we conducted previously had identified several opportunities for the conceptual design of a sustainable vaccine R&D infrastructure.These include general gaps and needs in the vaccine R&D field such as lack of expertise in transitioning vaccine candidates from preclinical research to clinical testing, as well as specific aspects including the lack of access to value chain services, such as vaccine formulation expertise, pre-clinical testing, small-scale manufacturing according to good manufacturing practices (GMP), regulatory support.Moreover, our analysis revealed the difficulty of securing funding or financing for late-stage preclinical vaccine development, vaccine GMP manufacturing and early clinical testing (for details, see Jungbluth et al., 2022).Keeping in Based on these expectations defined, amongst the different business model options we developed, the one we selected for further consideration is described below.
-Novel concept of European Infrastructure business model The option we are proposing is a combination of two different business models -namely a contract development partnership model and a bio-holding model-that are outlined below.This hybrid model was selected as it has the advantage of offering two different and independent types of revenue streams.Moreover, regarding the establishment of the RI, this hybrid model would facilitate the initial setting up of the infrastructure by starting with one of the models first (the contract development partnership) and subsequently implement the establishment of the other (the bio-holding model), which is the more challenging model to build. -

Contract development partnership model
Under this business model option (Figure 1), the RI will offer to its customers a full suite of tailored value-chain and transversal scientific-technical and other services related to vaccine development and business building.This model assumes no access to (cash) funding.However, funding may potentially be provided to customers through in-kind contributions by the RI providing free or discounted services to customers in exchange for a small stake in the customers' vaccine assets.Target customers are primarily early-stage vaccine developers and start-ups in need of specific services and expertise in early-to mid-stage vaccine development.
The particular value proposition of the contract development partnership model consists in the RI functioning as a product development partner for public and private institutions/vaccine developers, including academia, to which an RI and critical high-value services will be provided either free of charge or at a significantly discounted rate.
The monetization model of this business model (Figure 2) consists in revenues related to the provision of commercial services for which different payment options can be foreseen, such as upfront or milestone payments, royalties, or fees for services, and which will be negotiated on a case-by-case basis.
The most important key steps related to the implementation of the contract development partnership model would mainly involve the definition and establishment of professionalized services/service portfolio, including, for example, the setting up of platforms and operational and managerial procedures, the strengthening of the RI member network to ensure the availability of critical scientific-technical capacities, as well as building project management expertise.
-Bio-holding incubator model Under this model (Figure 3), the RI will function as an incubator for early-stage vaccine developers by providing funding and active business-building support, including value chain and transversal services.Selected vaccine candidates considered of interest (e.g.due to their indication, market potential, etc) will be in-licensed by the RI.Subsequently, using the financing, scientific-technical expertise and capacities available, the vaccine RI will continue the further development of the in-licensed vaccine candidates down to early-to mid-stage clinical development.
For this model, the RI will be established as a -biotech-holding legal entity that over time will build multiple subsidiaries.
The holding company will be constituted by different research organizations (for example, members of the TRANSVAC infrastructure project and other organizations) that thereby will become members or partners in this venture.Each of the subsidiary companies will focus on one individual vaccine candidate ("asset") that will be in-licensed at late discovery or preclinical development stages and subsequently be further developed in-house, using financing of the bio-holding and the scientific-technical capabilities and expertise of its member organizations.The development of vaccine candidates within the subsidiaries will thus allow them to draw on resources from and to share vaccine development risks with the parent holding company.Target organizations ("target customers") for the in-licensing of vaccine candidates are small to medium-sized vaccine developers (public and private) with vaccine candidates for further development that require additional external R&D capacities, expertise and financing.The particular value proposition of this model is that the RI will become a business partner for pharma companies and as an RI will conduct R&D to support vaccine assets from discovery/preclinical stages until early-to-mid stage clinical development.Importantly, in addition to scientific-technical support, other value chain services provided by the RI under this model would include the provision of (seed) investments early in vaccine R&D projects, using financial resources from the RI's own balance sheet.
The monetization model under the bio-holding model option is mainly related to the equity deal under which the RI will own a minority stake in the subsidiary companies established which advance the development of the in-licensed vaccine candidates.If and once the vaccine development has successfully completed phase I or phase II clinical testing, the vaccine candidates will be sold to a larger pharmaceutical company such that the equity value growth of the asset will be turned into cash upon exit (Figure 4).Moreover, the RI will receive a management fee from the investments allocated to it by the external investors to build its portfolio.
The key steps required to implement the bio-holding business model include the need to secure funding/financing (investments) from external investors, such as private equity or venture capital funds, investment banks or others whose financing will be used to cover the costs of the further clinical development of the in-licensed vaccine candidates as well as other operational costs of the RI.An additional requirement will be to build the critical fund management and business building expertise and capabilities within the management team of the RI.
Table 3 provides an integrated summary of the major characteristics of the different model options described above.
(ii) Socio-economic impact analysis Subsequently, in order to establish a series of explicit, measurable levels of output across a range of activities and to indicate the scale of value creation that is at stake, we undertook an ex ante assessment of the socio-economic impact that might be expected from a stable and sustainable European vaccine RI based on the hybrid business model outlined above.
The period covered by this assessment includes the first ten years of operations of a vaccine RI based on the business model proposed.The assessment used the KPIs and methodology described in the Methods section in terms of three broad types of dimensions: (i) health impact, (ii) societal impact and (iii) economic impact (Figure 5).
The health impact dimension refers to innovations in vaccine R&D (such as in terms of tools/technologies/solutions developed, vaccines developed and vaccine-related impacts, e.g.numbers of future deaths prevented and quality of life improvements); the societal impact dimension refers to dissemination activities and new publications, human resources activity, education and training and the value of new vaccines brought to the market; and finally, the economic     Measure of potential impact (KPI) Impact estimate

Expected number of new vaccines in clinical development
Total of 15 new vaccines supported across preclinical down to phase 2 stages (via bio-holding; during first ten-year period), leading to one novel vaccine entering market by the end of the ten-year period (after de-risking and accounting for development duration) impact refers to vaccine industry, expected numbers of new jobs created, business and related outputs, impact on SMEs, impact on research institutes and networking activities.Apart from these dimensions, the KPIs were split across three categories in order to indicate the time horizon of their measurement, selected to best mirror the progress of the RI, namely (i) short-term, (ii) long-term cumulative impacts, and (iii) an operational metrics to be used for monitoring of the RI execution.The estimated impacts for all three dimensions are summarized in Table 4.
(a) Health impact The ultimate objective of this initiative is to support and enhance the vaccine R&D ecosystem in order to address both financial 'translational valley of death' (the funding gap between early research and clinical trials that makes the translation of basic science into clinical candidates so challenging) and a more general capabilities gap in early development stages.This will be realized over a longer period of time, and as a result is expected to produce more novel vaccine candidates that successfully advance through clinical trials and into medical practice.The expected number of new vaccines in development will reflect candidates whose origination and development have been supported by the vaccine infrastructure activities.This requires tracking vaccines through each stage of their developmentin other words, the number of candidates that have reached key successive milestones (i.e. the number of new vaccines proceeding to first-in-human trials, reaching proof-of-concept stage and entering the market).According to an analysis of annual trends data 5 , the average length of the development cycle from phase 1 to market is ~7.5 years (outside of pandemic and seasonal situations).This has therefore to be a long-term metric and one which encompasses the entirety of the first ten years of the initial RI operation.Our expectation of one novel in-market project being enabled in ten years is consistent with the vaccine infrastructure producing one late-stage novel project over its first five years of operation.This is also consistent with 15 new early-stage vaccines being supported throughout this time period.Considering the average length of vaccine development (for complex projects it can take 12 years or more from preclinical to end of phase 3), the majority of these projects will not have reached clinical adoption by the end of that first decade (Terry et al., 2018).For projects that would progress to the mid-late stage clinical testing of vaccines, industryaverage success rates are applied to account for inevitable attrition to arrive at approximately one novel infrastructuresupported vaccine reaching approval within the first decade.
Such a vaccine would likely be followed by other candidates, so impact could scale up beyond that first decade as more projects progress through clinical trials.If we consider the range of vaccine-specific probabilities of success and likely development cycle time, between 2 and 4 of the 15 supported assets would be expected to reach successful launch.This impact could be further expanded by improvements to existing licensed vaccines (e.g., other routes of administration or to make production more cost-effective).Such incremental changes typically do not require a full development process and hence such new products can be adopted more quickly and at a lower risk.Several such products could thus reasonably be anticipated over the following 10-20 years (even though the prospective health impact of vaccine improvement is more variable and harder to estimate given that it would depend on the needs left unmet by current vaccines).
The true impact of novel vaccines reaching market is their actual benefit for patients and health systems.This can be expressed as the expected number of future deaths, severe cases prevented and the expected disability-adjusted life year (DALY) improvement.For one new vaccine estimated to be introduced to market after the first ten years (accounting for the aforementioned time and risk), the actual impact on population health may be estimated.The accuracy of such an estimate is subject to significant uncertainty given variations in the prevalence, virulence, mutation rates and severity of the kinds of disease that might be targeted by such a vaccineeach of which affect burden, mortality, achievable vaccine effectiveness and adoption rate.
Several approaches exist for modelling the impact achieved by recently-introduced vaccines.Based on models published in the medical literature, we suggest two scenarios may be helpful to consider in arriving at an understanding of the scale of health impact achievable for a single new vaccine: a COVID-19-based case to illustrate the potential benefits of a novel vaccine in a pandemic setting, and an influenza vaccine efficacy improvement scenario to illustrate the benefits achievable for common endemic diseases (even ones already treated with vaccines that are not yet fully optimized).
The real-world impact of a novel product might fall somewhere between these low and high outcomes, whereas potentially being further enhanced by more of the 15 novel vaccine candidates supported by this effort reaching market over a longer time period.Other, smaller incremental projects might be supported that in turn might reach market sooner (and with lower risk), but in turn their potential health impact could be expected to be more incremental -typically only improving upon existing vaccines-and as a result too elusive to model separately.

High-impact scenario (pandemic vaccine)
Based on recent assessments made with respect to COVID- In parallel and considering the overall effect of COVID-19 in terms of DALYs, a recent estimate concluded the DALY impact of COVID-19 in just Scotland and only in 2020 was 102,350 (Wyper et al., 2022).This calculation reflects the specific demographic and healthcare characteristics of just one region of the UK but considering the size of the population of Scotland in relation to that of the entire WHO European region (approximately 0.6% of the total), an equivalent effect for the region might be very approximately estimated as being more than 150 times as great, or over 15 million DALYs.
The DALY decrease linked to vaccination can be anticipated to be in proportion to the ratio of deaths prevented to total projected deaths as modelled (Watson et al., 2022) (72% in first year of vaccination accounting for vaccination coverage and efficacy).Applying this to our approximate estimate of 15 million for the DALY effect of a new pathogen resembling SARS-CoV-2 implies a vaccine impact in excess of 10 million DALYs in the region, and if four vaccines were again to be introduced and with approximately equal effect, an impact for a single vaccine on the order of 2.5 million DALYs (Table 4).The conversion of deaths to DALYs may vary for different infections, for example SARS-CoV-2 resulted in large numbers of individuals with Long COVID.

Low-impact scenario (influenza vaccine efficacy improvement)
The second scenario assumes an efficacy improvement and administration optimization for an existing (but not optimized) vaccine against a common but-usually-less severe endemic disease.It is based on modelling influenza and its seasonal vaccine of 2017-18 (characterized by lower than usual efficacy) compared to a more optimized variant (Sah et al., 2018).Compared to no vaccination, a low-efficacy vaccine already drives significant health benefit -for instance, a 20% efficacy flu vaccine administered at ~40% coverage is projected to avert more than 21 million infections, ~130,000 hospitalizations, 61,812 deaths, and 2.2 million DALYs in the US (Sah et al., 2018).With efficacy increased to 40%, the scale of health benefit can be doubled.Scaled for Europe (based on the total population of Europe and the USA as of 2020), this would imply approximately 28 million infections, 175 thousand hospitalizations, more than 80,000 deaths, and 3 million additional life years saved.
The health benefits represented by DALYs and deaths averted are further strengthened by the economic impact on the health systems.This is evidenced by the cost-effectiveness of vaccination programs, with most costing less than $50 per life gained and thus orders of magnitude cheaper than the prevention of many non-infectious diseases such as diabetes or hypertension (Bloom, 2011;Ehreth, 2003) (Table 4).

(b) Societal impact
The vaccine infrastructure can deliver positive societal impact both directly and indirectly.The indirect societal consequences of a successful vaccine deployed at scale are potentially enormous.This set of indirect impacts has not been assessed.
In terms of direct impact, it is possible to anticipate the number of new jobs created.By attributing new jobs solely to those in new SMEs as a consequence of a more assured pathway between innovation and clinical trials, and assuming an average of 5-10 employees for each, this would imply 100-150 new positions over ten years.The broader perception of the European vaccine development industry can be enhanced by a vigorous publication record and effective communications (see below).Further, a target can be set for the percentage of researchers undergoing training who experience an improvement in their knowledge base/knowledge capital, as quantified by post-course surveys.These targets are set as 75% of trainees reporting at least a 'good' level of improvement in their knowledge base in post-course surveys, and 50% of trainees reporting 'excellent' improvement, based on historical feedback from previous training courses organized in the context of the TRANSVAC project7 (unpublished data).
More broadly, a target may be reasonably set for media appearances at 30 separate appearances a year, based on past TRANSVAC dissemination rates (this including press releases, website launches and social media campaigns; and also a target for the number of research partners trained through the vaccine infrastructure (assuming nine training courses in total with an average of 15 attendees per course, this can be set at 135 over the ten-year period in question).All these activities help ensuring a positive momentum for the sector by building awareness, disseminating findings and contributing to reputation building for the sector (Table 4).This is particularly critical for the introduction of new vaccines whose benefits could be undermined by false information on social media, supported by the increase in vaccine hesitancy in some communities.

(c) Economic impact
Any vaccine that is successful in preventing or ameliorating serious disease is likely to have a significant and sometimes very substantial indirect economic impact (see, for example, Atkins et al., 2018;Sandmann et al., 2022;Portnoy et al., 2023).Positive effects are also going to be observed for the local life science innovation ecosystem and industrythose effects being achieved even before any successful products reach the market and contribute to increased competitiveness and economic health.For the purposes of this socio-economic assessment analysis, however, only direct economic impact is considered.
The KPIs selected for measuring economic impact would likely require observation and targeting in respect to expected revenue generated.Our business plan modelling suggests total revenue on successful exits after ten years amounting to €159 million, but given the long-term nature of vaccine development, these revenues would be most likely to accrue towards the end of the period.To put this value in context, average annual European sales of novel non-COVID vaccine products were €175 million in 2021 8 .The expected value of funding attracted is assumed to be €100 million over ten years.The expected value of licensing deals is aggregated with an expected revenue generation of €159 million over ten years (i.e.much or all of the revenues obtained from the initiative will be realized in the form of licensing deals).
These are not formal targets but rather reasonable estimates of what could be expected based on the extrapolation into the future of the activities conducted under the TRANSVAC project.Revenue and investment values contribute directly to the reinvigoration of local R&D ecosystems.Moreover, it is assumed the vaccine infrastructure's activity may also lead directly to SME creation by facilitating access to funding and capabilitieswith the target for the number of SMEs created being 15 over the first ten years of the initiative.
In addition to large deals and the birth of new SMEs, the vaccine infrastructure can also provide a range of scientific services.These may vary significantly in scope from technical capabilities and execution of experiments to more comprehensive offerings including study design and a more complex execution capability.The precise services offered will be finalized in the future with consideration for the demand for specific services during the past TRANSVAC projects as well as stakeholder surveys we conducted.The most popular services have included antigen expression/production, adjuvant formulation testing, animal models for infectious diseases, immunocorrelates analysis, and regulatory support.
Within the ten-year period, a contract development partnership model could be expected to support a total of 33 projects, with 50 instances of services provided.The predicted revenue stream generated by these services is small, estimated at ~€0.2 million per year (in line with currently observed inflow from ongoing projects), contributing an additional €2 million to the overall consortium revenue over ten years.The main economic value, however, is in the invigoration of the ecosystem and enabling academic and industry innovators to access capabilities they usually would be unable to maintain in-house (and that might otherwise be inaccessible, considering the limited scope of contract research organisations (CROs) services offered within early-stage vaccine R&D).
In addition to financial metrics, the vaccine infrastructure can also make a direct contribution to the generation of new innovations and intellectual property by supporting vaccine R&D.As part of this, the number of new patents issued would be expected to equal TRANSVAC's historic performance (i.e., one approximately every four years).Such patents represent meaningful improvements in R&D processes (e.g., formulation or technical methods) and thus facilitate development of novel products across the ecosystem (Table 4).

(d) Operational impact
The most important consequences of the vaccine infrastructure are only fully measurable over the long term due to the characteristics and length of the vaccine development process, which must account for manufacturing, rigorous clinical trials and regulatory evaluations.It is therefore especially important to identify operational activity variables which can be reported on a more frequent basis, but which can be reasonably associated with long-term success.The expected number of publications may be observed and targeted (five a year on a two-year time lag to allow for the process of paper preparation, submission, review and acceptance based on TRANSVAC's historic experience) and the expected number of new scientific services established as an offering to researchers (one new service offered every two years, coming to a total of five over the ten-year period).The number of vaccine projects supported at any one time can be tracked (five to ten projects, as mentioned above).Finally, a robust level of engagement can be targeted in terms of the organization of stakeholder and investor meetings (12 a year, to cover a variety of combinations of stakeholders and/or investors) (Table 4).

Discussion
RIs are fundamental enablers of science, research, innovation and education.They facilitate cutting-edge scientific investigations and support the development of innovative solutions to various challenges.However, RI are also known to be notoriously expensive in their establishment and maintenance, and the costs for their establishment alone often range from millions to even billions of Euros, depending on the scientific discipline and type of infrastructure.Very frequently, public funders bear most of this burden.This is also true for most if not all already of the existing RI in Europe.The major source of funding for the existing RI that are part of the ESFRI Roadmap, is public funding provided by different European Union (EU) Member States' governments although most of them through their operations aim to generate revenues e.g. by providing commercial services.Most of these RI also obtain additional funding via competitive EU and other types of grants (i.e., additional public funding).So, although probably all of the existing RI have revenue comprising a mixture of financing from different sources, the largest share by far of their total income comes from public funding sources without which none of the RI would be able to survive or operate.
Being acutely aware of the levels of financial commitments and other responsibilities that this near-absolute dependance of RIs on public money entails, governmental funders and decision makers have a keen interest in promoting the development of alternative business models that may allow RIs to become sustainable and operate more independently of public funding.
Striving for sustainability has also been the major rationale underlying the TRANSVAC design study.A well-designed and stable vaccine R&D RI could play a major role in tackling existing challenges and in advancing innovation in the field.We have demonstrated this in the successful implementation of the TRANSVAC projects, that-thus far with the exclusive financial support of the EU-obtained important achievements.For example, the TRANSVAC and TRANS-VAC2 projects have together reviewed 158 applications for free services and approved 88 projects from 19 countries.Nearly a quarter (18) of those projects involved services provided by multiple institutions.TRANSVAC2 has also organised two rounds of a new, free 14-course vaccinology training program.More than 400 trainees from academia and industry attended, helping to fill an important training gap in the field (Geels et al., 2015;Martin et al., 2023).Beyond the provision of scientific-technical services, TRANSVAC was also charged with conducting a feasibility study with the aim of developing and proposing an alternative business model for a sustainable European vaccine RI.As the first step in this exercise, we undertook a detailed gaps-and-needs analysis of vaccine R&D in Europe (Jungbluth et al., 2022), the outcomes of which informed the subsequent steps.The most important findings from this assessment that shaped the development of alternative business models for a vaccine RI were the lack of funding and financing available for vaccine R&D, the need for expertise and guidance to vaccine developers, and the difficulty in accessing critical technologies, platforms and other key infrastructure.
These findings present an opportunity for a new initiative and formed the basis for the hybrid business model we have presented here.This hybrid model offers a mixture of scientific services for potential vaccine products and support for business development.Regarding vaccine development, the vaccine RI we envision will offer a portfolio of services emphasizing high-value scientific-technical services, provided on a commercial basis with different payment modalities or the option to enter into an equity-based partnership model.Importantly, beyond the provision of services to "external" vaccines, the bio-holding model contained in our business model will go further and in-license into the vaccine RI selected vaccine candidates that have been identified and considered of interest.Financing will be raised from external investors such as private equity or venture capital funds, and investment banks to fund in-house development of these in-licensed vaccine candidates through phase I and phase II clinical testing.If these clinical steps are successful, the vaccine assets will be sold to pharma companies for late-stage development and commercialization, with the equity share corresponding to the vaccine RI in these assets being the major revenue stream for the infrastructure in the long term.
Importantly, by combining two complementary business models, our hybrid model offers the advantage of two different types of revenues.One is based on income linked to the provision of scientific-technical services on a commercial basis; income for the RI in this case will mainly consist of a brokerage fee charged for the mediation of services between the customer and the service provider.The second, and more important revenue in the long term, is linked to the expected equity growth of the in-licensed vaccines (of which the RI would hold a minority stake) that will generate cash upon sale to pharma companies.Although smaller in amount compared to the income from the bio-holding model, the revenue via the contract development partnership model has the advantage of offering a continuous stream of income which can cover the operating costs of the RI (e.g.human resource-related costs), especially in the first years of the RI.As mentioned above, the bio-holding model income is expected to be more important in the long run, but is only expected at a later stage of the implementation of the vaccine RI due to the more complex requirements, the risk of failure of any single vaccine candidate, and the time required to reach clinical trials.The contract development partnership model thus provides a smoother entry for the establishment of the bio-holding model and represents an overall measure of financial risk reduction.Moreover, the different types of requirements linked to the establishment of the two different models will enable a relatively fast and straightforward establishment of the contract development partnership in the early stages of the overall venture, subsequently allowing the RI to concentrate more efforts on the establishment of the bio-holding model.The bio-holding model clearly is the more demanding venture to establish due to, for example, the need to mobilize significant external financing and to scout and manage the in-licensing of vaccine candidates.For a vaccine RI based on our proposed business model to function in the long run, it is important to emphasize that it will only work if the bio-holding model can be implemented successfully, as the revenue stream based on the contract development partnership only would not be sufficient to sustain the operation and running of the RI.
As mentioned before, the development of this business model was informed by stakeholder consultations we conducted to ensure that the model aligned as closely as possible to stakeholder needs and interests.For the same reason, once this model had been developed and refined, we returned to several key stakeholders, including researchers from public and private organizations, investors and investment banks, to pitch the model to them.The feedback we received from this exercise was largely positive and encouraging.Overall, the model we have developed was considered relevant and feasible-but challenging-to implement.
The ex ante impact assessment we conducted shows that a vaccine RI based on the model we have developed is likely to have a very important impact along the three dimensions we explored (the health, societal and economic spheres).These dimensions are discussed individually below.However, it must be acknowledged that vaccine development is inherently uncertain and despite utilizing the best available evidence and making the estimates in good faith, these estimations remain subject to significant potential positive or negative variance.Although there is a lot of literature and thinking around ways of measuring the impact (including ex ante) of aRIs (see, for example, ESFRI, 2023), we are not aware of any ex ante socio-economic impact assessment for a biomedical RI to the level of detail and depth we have undertaken for a vaccine RI.
In the health dimension, our estimates indicate that -using our investment target of €100 million -a total of 15 new vaccines can be supported from preclinical stages to phase 2 clinical testing, of which during the 10-year time frame of our estimations we expect 1 vaccine candidate can be sold to pharma industry (for the assumptions underlying our estimations, such as vaccine development timelines, attrition rates, costs, etc., see the Methods section).For estimating the eventual public health impact of the vaccines supported by the vaccine RI, we have used two different scenarios, one based on a high-impact case (such as a pandemic vaccine similar to COVID-19 vaccines), and another scenario based on a low-impact case (such as a seasonal influenza vaccine with improved efficacy).The expected numbers of future deaths and severe cases prevented for the low and high impact scenarios, respectively, range from 80,000 to 1.1 million deaths averted per single vaccine.This estimation does not include any of the other vaccine candidates in the vaccine RI pipeline beyond the 10-year timescale of our estimations; if those were also considered then expected impact would be higher.
Regarding the improvement of DALYs, we expect between +2.5 million and +10 million DALYs saved per single vaccine for the low-and high-impact scenarios, respectively (also here considering only the 10-year timeframe).
One has to keep in mind that these estimated health impacts only relate to the vaccine candidates that will be in-licensed and developed in-house by the vaccine RI (via the bio-holding model) and do not include any "external" vaccines whose development will be supported by the commercial scientific-technical services provided by the RI (via the contract development partnership model).Although many of these "external" vaccines can be expected to have additional positive impacts on public health in the long term, estimating this impact proved too speculative and therefore was not included in our overall impact assessment.Overall, considering the level of initial investment our venture would require, we consider that our model for a vaccine RI has the potential to achieve a very substantial positive impact on public health.
Regarding the societal impact, we estimate that between 100-150 new positions will be created in direct relationship to the model we propose.On one hand, there will be a certain number of new positions linked to the management headquarter of the RI itself.Most of the new positions, however, will be linked to the establishment of the subsidiary companies that will be established under the parent holding company.As we foresee that a single company will be established for each vaccine candidate in-licensed to the vaccine RI, for the 10-year period of the currently planning we estimate a total of up to 15 subsidiaries.Each of these subsidiaries will be relatively small in size but require a certain number of scientific-technical staff.The number of subsidiary companies could also be somewhat lower, as some vaccine candidates developed in-house by the vaccine RI may not require formal in-licensing and establishment of a new, dedicated subsidiary company.
The other impacts in the societal dimension relate to training offered via the vaccine RI and the overall number of media appearances of the venture.These estimations are directly extrapolated from data from the TRANSVAC projects and are considered highly reliable.Overall, we consider the realistic societal impact as defined here to be significant, although less critical than the health impact due to the nature and size of the proposed venture.
For the economic dimension, we have estimated the impacts linked to both parts of our business model (the bio-holding and contract development partnership aspects).Based on our experience providing scientific-technical services through the TRANSVAC projects and the experience of already existing RI in the biomedical field that provide commercial services, the direct economic impact related to the provision of services by a vaccine RI can be estimated in a very reliable manner.This relates both to the number of commercial services provided and the corresponding revenue.As mentioned above, as the vaccine RI we are proposing for the service provision functions mainly as a broker, and the direct income of the central infrastructure related to this business model essentially corresponds to a brokerage fee.Although representing only a minor part of the overall revenue generated by the RI in the long term, it will nevertheless be important for starting the entire venture and facilitating the transition towards the establishment of the bio-holding model and also addresses an important existing need in the vaccine R&D community.However, most of the revenue is eventually expected to result from the bio-holding model, namely the growth in equity that has been generated between in-licensing and selling the vaccines after their further development.This business model is based on large pharma companies buying these vaccine assets after successful phase I or phase II clinical stages.Vaccines must have commercial potential to maintain relevance for large pharma.Consequently, at least during the first ten years or so of its existence, a vaccine RI based on our model for the bio-holding venture will--and must--mainly target vaccines of relevance for high income markets in order to become sustainable.Once sufficient profit has been generated by the vaccine RI, eventually the capital available can also be used to in-license and further develop vaccines for neglected diseases with more limited commercial perspectives.Vaccines of this kind could also be supported earlier in case financing from philanthropic investors or public funding are mobilized for the vaccine RI to allow direct support for products with less market potential.

Conclusions
Our consortium has attempted to develop a business model for a sustainable vaccine RI that would be able to operate without a dependence on public funding and estimated its impact using the most reliable data possible and based on widely accepted assumptions and existing evidence.Nevertheless, substantial variations and uncertainties are inherent to this type of modeling and ex ante assessment.Still, both our model and the estimations will become increasingly better and reliable the more we advance with this venture and with the particular steps we will achieve.Uncertainties will be replaced by facts, and new data will become available both from our own work, as well as from those of others working in this field.
To conclude, we believe that our model can be viable and that the expected impacts are sufficiently high to merit advancing.The next step in the establishment of a vaccine RI at this particular moment is the selection both of the country for the RI's headquarters, and -linked to this-the selection of a legal entity option considered suitable for our particular model.We are currently in the process of defining the key criteria and aspects to be used for assessing and comparing different legal entity options, considering aspects such as the role and liability of members/shareholders, costs of establishment, reporting, audit and accounting requirements, supervision by the authorities, and taxation issues.Given that the mission of the envisioned vaccine RI is to accelerate vaccine development in the interest of public health and societal benefits, legal entity options will be prioritized and explored that allow the establishment of the RI as a non-profit venture.
Vaccine development is directly linked to a better future for Europe and beyond.We believe that a well-designed and sustainable European vaccine RI has the potential to promote the development of the industry and a significant regional and global health impact.In this context, the proposals by the Authors, stemming from their experience in Transvac, a Horizon2020 funded consortium, are welcome.However, their ambitions are limited and the hybrid model they propose is perhaps not entirely appropriate to the objective of a EU wide RI.

Massimo Florio
It seems that on one side the model would be a service provider to third parties, such as pharma stat-ups, SMEs, Universities and so on.The Authors list some services but it is not entirely clear to me why the proposed RI with, as it seems, limited own staff and budget, should make a difference in the European Panorama with existing Contract Organizations, except probably because the services would be sold at low cost, reflected in minimal revenues in the sketched business plan.I understand this venture as a not-for-profit entity, perhaps a distributed RI, but there are others in the EU, for example for clinical trials, etc.Thus the Authors should show why they would be able to offer something not already available and precisely what and to whom.
Having said this the Authors turn to an entirely different model, where the RI would act as sort of venture capitalist for certain vaccine projects, mainly in the earliest clinical studies.They forecast that in ten yers a vaccine would emerge from this approach, targeted to something in the scale of between the SARS COV-2 vaccines or an incremental influenza virus.This is very vague indeed, and the spectrum is so wide that one cannot understand the appropriateness of the strategy.
Should the Authors want to revise this paper or write a follow up my suggestions are as follows: a) Firstly, take advantage of the previously mentioned studies and frame their proposal in the context of ongoing policy debate in the EU about pharma R&D b) Secondly, consider that if they are proposing a public-private but not for profit initiative they also need to show why it should be competitive with exisiting organisations in terms of services offered: they may for example consider a benchmark organisation and discuss their assessment c) Finally, for the hub model, the Authors seem to basically adopt a business model that may overlap with the activity of venture capitalists on one side, or even the activity of some public bodies, such as HERA and the EIB, which are also proposing to provide support and seed capital etc in certain R&D investment projects.d) The issue of Intellectual Property Rights arising from the hub activities should be also more discussed.
I understand that what I am suggesting goes probably beyond the Authors' intentions, but as mentioned they can try and be more ambitious.They certainly have first hand evidence about R&D needs, lack of certain services and of capital, and about the overall panorama to better place their proposals in the context.To be clear, I have nothing against an hybrid model, but as it stands there are two subsequent models in one paper rather than a synergic combination of activities.Perhaps the Authors may deal with this issue by starting from the beginning with a more complete proposal.testing?This is somewhat alluded to at the start of the results but should be more explicit as these boundaries could heavily impact the monetisation models presented.

Is the work clearly and accurately presented and does it cite
3. The monetisation models are really interesting but there is little assessment of whether these models would be financially viable and how the upfront RI is expected to be financed within the hybrid access model.It would be good to have some worked up examples on cost of vaccine research and establishment of RI against the benefits anticipated.In terms of upfront establishment of the RI, the models proposed here do not talk about this but rather develop models that could provide varied revenue streams for sustaining/maintaining existing RI.This should be specified upfront as the following sentence is misleading: "The model we have developed integrates two different types of business models that would provide the infrastructure with two different types of revenue streams which would facilitate its establishment and would be a measure of risk reduction." 4. The financial modelling details would be valuable to include as a supplementary appendix to understand the basis of the estimations proposed.
5. I really like the nuancing of health impacts as presented especially in different settings.

Ingrid Kromann
Coalition for Epidemic Preparedness Innovations (CEPI), Oslo, Norway I have carefully reviewed the manuscript and I appreciate the opportunity to provide constructive feedback on the paper.Summary: The paper addresses an important topic-coordinated vaccine development infrastructure-and highlights the significant need for sustainability in this area.The manuscript effectively discusses the challenges faced during the initial stages of vaccine development, focusing on the transition from preclinical research to clinical research, commonly known as the first valley of death.However, to support the business model the paper could be strengthened to provide a more comprehensive understanding of late stage development, matchmaking with industry and commercialization, particularly regarding the vaccine portfolio and region in scope (second valley of death).Specific Suggestions: 1: The paper would benefit from a more detailed explanation of the specific regions and vaccine areas the proposed infrastructure is intended to address.It is crucial to clearly outline if it is the unmet needs and/or EPI vaccines the infrastructure aims to target.This clarification will enhance the paper's relevance and applicability to diverse stakeholders involved in vaccine and business model development.
2: While the manuscript extensively covers the challenges associated with the first valley of death, it briefly touches upon the critical second valley of death, which involves the transition from latestage development to commercialization.The paper should delve deeper into this aspect, providing a more thorough analysis of the business model's dependency on licensed/commercial products.A comprehensive discussion on the funding requirements and the importance of strategic matchmaking for successful transition is crucial.Additionally, detailing the industry's interest in vaccines and emphasizing the correlation between vaccine area selection and business model success will strengthen the manuscript.
3 The manuscript briefly mentions the industry's interest being dependent on the demand for commercial products.Expanding on this point and elucidating how the selection of vaccine areas influences industry engagement will provide a more nuanced perspective.The paper should discuss how aligning vaccine development with market demand enhances the likelihood of attracting funding and industry support. 4 The conclusion could be strengthened by summarizing the key initiatives needed and emphasizing the interdependence of geographical focus, thematic relevance, and business model considerations in the proposed vaccine development infrastructure.It is essential to reiterate the paper's contributions and provide a clear call to action for policymakers, researchers, and industry stakeholders.
In conclusion, while the manuscript addresses a crucial topic and provides valuable insights into the challenges of vaccine development infrastructure, further refinement in the areas mentioned above will enhance the paper's clarity, depth, and overall impact.

Is the work clearly and accurately presented and does it cite the current literature? Yes
Is the study design appropriate and is the work technically sound?Yes

Are sufficient details of methods and analysis provided to allow replication by others? Yes
If applicable, is the statistical analysis and its interpretation appropriate?

Not applicable
Are all the source data underlying the results available to ensure full reproducibility?Partly

Are the conclusions drawn adequately supported by the results? Partly
The KPIs listed in Table 2 rely mostly on unpublished data and are therefore not easy to use by others (hence my 'partly' answer in terms of data reproducibility) although some numbers are mentioned in Table 4.In that respect, the number of new patents appear fairly low (one every four years), given the number of projects (33) and incubated companies (15) within 10 years.
One minor point is a certain redundancy of information in Figures 1-4, these could be streamlined.
n the discussion the costs of running the infrastructure are mentioned in the sense that the service model cannot cover these costs.It would be helpful to have actual figures available on which this statement is based.What is the estimated income from the brokerage fees, and what are the personnel and other operational costs of the infrastructure?For instance, costs for general administrative or financial services through third parties could be obtained.Additional revenue stream of the infrastructure are possibly overheads derived from EC-funded projects -these are not taken into account at all although historical figures from the TRANSVAC projects exist.
Finally, the funding gap at least in the first years of the infrastructure could still be covered by membership contributions from countries although it is laudable that the authors attempt to design a fully sustainable model without public funding.Maybe it would be worth mentioning in the discussion that this option exists.
Overall, the article will be useful also for other biomedical infrastructures to support their business plans -as the authors mentioned in their discussion, another publicly available study which such detailed numbers does not exist for an infrastructure or would be at least hard to find.

Is the work clearly and accurately presented and does it cite the current literature? Yes
Is the study design appropriate and is the work technically sound?Yes Are sufficient details of methods and analysis provided to allow replication by others?Yes If applicable, is the statistical analysis and its interpretation appropriate?

Not applicable
Are all the source data underlying the results available to ensure full reproducibility?Partly

Are the conclusions drawn adequately supported by the results? Yes
Competing Interests: No competing interests were disclosed.
Reviewer Expertise: Research infrastructures, chemical biology, drug discovery I confirm that I have read this submission and believe that I have an appropriate level of expertise to confirm that it is of an acceptable scientific standard.
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Figure 1 .
Figure 1.Overview of the functioning of the contract development partnership model within the vaccine RI based on the hybrid business model.Blue arrows indicate financial flows, grey arrows scientific-technical or other types of participation and contribution.

Figure 2 .
Figure 2. Monetisation model for the contract development partnership.

Figure 3 .
Figure 3. Overview of the functioning of the bio-holding model within the vaccine RI based on the hybrid business model.Blue arrows indicate financial flows, grey arrows scientific-technical or other types of participation and contribution.

Figure 5 .
Figure 5. Socio-economic impact of the vaccine RI.The ex ante socio-economic impact of the vaccine RI with the proposed hybrid business model was assessed along the three dimensions indicated.

Table 1 .
Summary of proposed KPIs including their assessment frequency and time horizon.

Table 2 .
Continued -Accelerate vaccine development in the interest of public health and societal benefits.

Table 3
. Main features of the two business models integrated in the hybrid model proposed for a sustainable European vaccine RI.

Table 3 .
Continued • Build fundraising and fund management expertise and capabilities • Secure funding (investment) from investors • Build business building expertise and capabilities • Professionalize services • Build project management expertise • Professionalize services • Build some business coaching expertise and capabilities

Table 4 .
Continued 19, the introduction of vaccines prevented approximately 4.3 million deaths (from 8 December 2020 to 8 December 2021) in the European region alone (Watson et al., 2022) 6 .Acknowledging that within the assessment timeframe there were in total four novel SARS-CoV-2 vaccines approved for use across the European region, we estimate that on average, the annual impact of a single vaccine in this case was over a million lives saved in Europe.
Universita degli Studi di Milano, Milan, Lombardy, Italy I have read this article with interest because of my own work for the European Parliament and other bodies about the need of European Biomedical Research Infrastructure, and more recently about the evaluation of the EU response to Covid 19 pandemic.Calls on the Commission and the Member States to create a large-scale, mission-oriented, public European health R&D infrastructure which operates in the public interest to manufacture medicinal products of health and strategic importance for healthcare, in the absence of existing industrial production, in order to support the EU to overcome market failure, guarantee security of supply and prevent possible shortages of medicines, while contributing to greater preparedness for facing new health threats and emergencies;" https://www.europarl.europa.eu/doceo/document/TA-9-2023-0282_EN.htmlFinally, they are by sure aware of the R&D implications of the EUPharma Strategy and the ongoing revision of the legislation on medicines.In the next months the European Parliament needs to vote on it position for future negotiations with the EC and the Council.

the current literature? Partly Is the study design appropriate and is the work technically sound? Partly Are sufficient details of methods and analysis provided to allow replication by others? No If applicable, is the statistical analysis and its interpretation appropriate? Partly Are all the source data underlying the results available to ensure full reproducibility? No Are the conclusions drawn adequately supported by the results? No Competing Interests:
No competing interests were disclosed.

have read this submission and believe that I have an appropriate level of expertise to confirm that it is of an acceptable scientific standard, however I have significant reservations, as outlined above.
https://doi.org/10.5256/f1000research.154839.r234689© 2024 Zakaria S. This is an open access peer review report distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.Sana Zakaria RAND Europe, Cambridge, England, UK 1. Spelling correction for poliomielitis required.It should be spelled poliomyelitis.2. It is unclear what the scope of the proposed European vaccine R&D infrastructure would be.The intro mentions that RIs range in scope so it would be helpful to define what scope has been considered in this assessment.I.e. is it inclusive of translational research and preclinical/clinical

Is the work clearly and accurately presented and does it cite the current literature? Yes Is the study design appropriate and is the work technically sound? Partly Are sufficient details of methods and analysis provided to allow replication by others? Partly If applicable, is the statistical analysis and its interpretation appropriate? Not applicable Are all the source data underlying the results available to ensure full reproducibility? No Are the conclusions drawn adequately supported by the results? Partly
Competing Interests: No competing interests were disclosed.Reviewer Expertise: health and technology policy research, experimental medicine researchI confirm that I

have read this submission and believe that I have an appropriate level of expertise to confirm that it is of an acceptable scientific standard, however I have significant reservations, as outlined above.
Reviewer Report 30 January 2024 https://doi.org/10.5256/f1000research.154839.r234698© 2024 Kromann I.This is an open access peer review report distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.