11:57am PST - February 28th, 2021
RT @segal_eran: Remember that vaccine efficacy was measured under conditions of masks and social distancing Efficacy is the sum of biologi…
0 retweets 251 likes - Nathalie Schirvel (@NatSchirvel)RT @segal_eran: Remember that vaccine efficacy was measured under conditions of masks and social distancing Efficacy is the sum of biologi…
0 retweets 251 likes - Nathalie Schirvel (@NatSchirvel)