3 ms·
That's looking at relative risk not overall. It's not saying you lose immunity after 180 days.
by rajin444 5y ago
That's looking at relative risk not overall. It's not saying you lose immunity after 180 days.
- dragontamer 5y agoNatural immunity wanes enough to cause a "2nd surge" in cities that were 75%ish infected, such as Araraquara city, Brazil, and Manaus, Brazil. I can agree with you that the 180-days thing is just an estimate from one study. Further studies are needed to narrow down the exact time when natural immunity wanes. But its a good "first guess" at the phenomenon, and should be within a magnitude of the truth. From what we've seen around the world, COVID19 (or at least its variants, like Gamma/P.1 or Delta/B.1.617) is more than willing to reinfect populations in less than a year.
- disgruntledphd2 5y agoThe Manaus study used a convenience sample, meaning that you cannot infer population rates from it. Who would have thought that reading the abstract of a paper could be a super power?