4 ms·
We still don’t even know whether immunity to this lasts more than a few months (as is common with other coronaviruses). So it’s premature to talk about herd imm
by gshdg 6y ago
We still don’t even know whether immunity to this lasts more than a few months (as is common with other coronaviruses). So it’s premature to talk about herd immunity regardless.
- Gwypaas 6y agoSARS, another corona virus immunity lasts for 3-4 years on average with some cases up to 11 years. So it wouldn't be surprising at all with at least 1-3 years of immunity for people who had more serious infections.
- Simon_says 6y agoHow could this possibly be known? The first case was in 2002, and the last case was in 2004.
- Gwypaas 6y agoBecause you can study the response without having the disease in the wild. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7115611/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7115611/
- Simon_says 6y agoThat's a nice article. Thanks for responding. The 3-4 year timeframe you mention isn't in there. Is there another source for that?
- Gwypaas 6y agoI've seen it mentioned with sources on /r/COVID19 a bunch of times. I think this is the study they might have been referring to? And this is antibodies, not the memory cells mentioned above. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2851497/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2851497/
- gshdg 6y agoIt might not be. But we can’t count on that either, given that shorter timeframes are common for many coronaviruses. It would be very foolish to act yet on an assumption that immunity lasts years.