Even those requirements need to be underpinned by clear evidence of a sterilizing effect of the vaccine in question. (And I'm curious: by your logic, do you su

Even those requirements need to be underpinned by clear evidence of a sterilizing effect of the vaccine in question. (And I'm curious: by your logic, do you support re-adoption of the oral polio vaccine? Some interesting developments: https://www.cidrap.umn.edu/polio/who-prequalifies-next-generation-oral-polio-vaccine https://www.cidrap.umn.edu/polio/who-prequalifies-next-gener...)