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I thought there had been cases of people getting reinfected, and that how long the immunity lasts seemed to correlate to how sick you'd been. So the immunity of
by elric 7y ago
I thought there had been cases of people getting reinfected, and that how long the immunity lasts seemed to correlate to how sick you'd been. So the immunity of asymptomatic people wouldn't last very long. Maybe it'll last long enough to make a dent in the infection rate?
- arcticbull 7y ago> I thought there had been cases of people getting reinfected, and that how long the immunity lasts seemed to correlate to how sick you'd been. What they found so far is that some people had lower levels of antibodies than others, but that it did not correlate to how sick they were. It's also not clear at this point that anyone's been re-infected (although it is possible) because it's much more likely they hadn't recovered but had received a false negative test followed by a positive test.
- saalweachter 7y agoAnd if some people can be reinfected after one exposure, it's not necessarily a death knell for a potential vaccine -- you get multiple boosters for some viruses for a reason, and the vaccine just has to take in a large enough fraction of the population to protect everyone.
- arrrg 7y agoWe don’t really know that. However, there are strong indications that PCR false negatives can happen quite a lot late during the illness. Those aren’t re-infections, that's just PCR testing at and around the detection limit. See these graphs from the Munich cluster in Germany: https://twitter.com/c_drosten/status/1249791222526468099 https://twitter.com/c_drosten/status/1249791222526468099