https://blogs.sciencemag.org/pipeline/archives/2021/02/02/myths-of-vaccine-manufacturing https://blogs.sciencemag.org/pipeline/archives/2021/02/02/my... This i

https://blogs.sciencemag.org/pipeline/archives/2021/02/02/myths-of-vaccine-manufacturing https://blogs.sciencemag.org/pipeline/archives/2021/02/02/my... This is about mRNA vaccines, but similar things exist for viral vector vaccines as well. Technology transfer, bioreactor bags, fill-finish capacity, all of these things are bottlenecked till next year basically.