#COVID19 #vaccine #efficacy and effectiveness—the elephant (not) in the room #study
#Pfizer #BioNTech #mRNA #Moderna #AstraZeneca #Gamaleya #SputnikV #JohnsonandJohnson
https://www.thelancet.com/journals/lanmic/article/PIIS2666-5247(21)00069-0/fulltext