not a direct answer but https://blogs.sciencemag.org/pipeline/archives/2020/04/23/a-close-look-at-the-frontrunning-coronavirus-vaccines-as-of-april-23 https://b

not a direct answer but https://blogs.sciencemag.org/pipeline/archives/2020/04/23/a-close-look-at-the-frontrunning-coronavirus-vaccines-as-of-april-23 https://blogs.sciencemag.org/pipeline/archives/2020/04/23/a-...