Upscaling vaccine manufacturing capacity - key bottlenecks and lessons learned.

"appendix a supplementary material the following are the supplementary data to this article: supplementary figure 1 supplementary figure 2 supplementary figure 3 supplementary data 1 data availability data will be made available on request. data availability data will be made available on request. acknowledgement this work was partly financed supported by the project number vi veni 201s044 [grant number 713732"

"Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper."

"This work was partly financed supported by the Dutch Research Council (NWO), project number VI.Veni.201S.044. [grant number 713732]."