3 ms·
Immunity is not permanent. We know people who got infected more than once.
by gher-shyu3i 6y ago
Immunity is not permanent. We know people who got infected more than once.
- hammock 6y agoEven taking the data least charitable to my postulate, a study[1] (which there are issues with that I will not mention) using a sample of 63 million medical records found a reinfection rate of 0.48% compared to 2.2% infection rate for the previously uninfected. This study therefore estimated protection against reinfection was 78.8%. That's higher than the 72% efficacy offered by the J&J vaccine. [1]https://www.eurekalert.org/pub_releases/2021-03/l-tls031821.php https://www.eurekalert.org/pub_releases/2021-03/l-tls031821....
- arcticbull 6y agoPotentially all the vaccines; the Moderna and Pfizer vaccines were tested before the emergence of variants. The J&J was more effective in the US where fewer variants were present at the time of testing than internationally where the opposite was true.