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Herd immunity may not work either. Today there's this article about people getting it twice and other viruses have already been known to let you get infected tw

Herd immunity may not work either. Today there's this article about people getting it twice and other viruses have already been known to let you get infected twice. https://www.vox.com/2020/7/12/21321653/getting-covid-19-twice-reinfection-antibody-herd-immunity https://www.vox.com/2020/7/12/21321653/getting-covid-19-twic...

kevin_thibedeau 6y ago
> He was unable to get an antibody test after his first infection It is entirely possible the first infection was a false positive.
- claudeganon 6y ago
  There's more than one example of possible reinfection linked in the article. >Ditchek said he encountered a second reinfected patient on Wednesday from the same family. This patient had accumulated so many antibodies from his previous COVID-19 infection that he was able to donate plasma to other coronavirus patients two times. "He'd been negative for seven weeks and sure enough was re-exposed," Ditchek said, and diagnosed positive for COVID-19 this week. https://dailyvoice.com/new-jersey/monmouth/news/central-jersey-doctor-reports-patients-reinfected-with-coronavirus/790555/ https://dailyvoice.com/new-jersey/monmouth/news/central-jers...
ttul 6y ago
While it is clear that some patients have had a positive test after an initial negative test - and even a recurrence of symptoms months after the initial symptoms - it is unclear whether the positive test and/or recurrence of symptoms is from the same virus recrudescing or from a new infection. On This Week in Virology recently, they said that it would be invaluable to sequence the virus the first time around and the second time around (in patients who recrudesce) to see whether the two infections were caused by the same virus (in genetic terms), or from a new infection by a genetically different virus. Either way, it's bad if immunity only lasts a few months, for obvious reasons.

kevin_thibedeau 6y ago

> He was unable to get an antibody test after his first infection It is entirely possible the first infection was a false positive.

claudeganon 6y ago
There's more than one example of possible reinfection linked in the article. >Ditchek said he encountered a second reinfected patient on Wednesday from the same family. This patient had accumulated so many antibodies from his previous COVID-19 infection that he was able to donate plasma to other coronavirus patients two times. "He'd been negative for seven weeks and sure enough was re-exposed," Ditchek said, and diagnosed positive for COVID-19 this week. https://dailyvoice.com/new-jersey/monmouth/news/central-jersey-doctor-reports-patients-reinfected-with-coronavirus/790555/ https://dailyvoice.com/new-jersey/monmouth/news/central-jers...

ttul 6y ago

While it is clear that some patients have had a positive test after an initial negative test - and even a recurrence of symptoms months after the initial symptoms - it is unclear whether the positive test and/or recurrence of symptoms is from the same virus recrudescing or from a new infection. On This Week in Virology recently, they said that it would be invaluable to sequence the virus the first time around and the second time around (in patients who recrudesce) to see whether the two infections were caused by the same virus (in genetic terms), or from a new infection by a genetically different virus. Either way, it's bad if immunity only lasts a few months, for obvious reasons.