• With any virus some people will catch it more than once. No different from measles or chickenpox. It's just the vast majority of people don't.

    The more useful information (which they probably need a lot more data to be able to answer) is what percentage of people who've had SARS-Cov-2 before get it again, and, whether they're infectious second time round, whether they're symptomatic second time round, what variation in levels of symptoms there are second time round (compared to first), etc.

    Remember that the standard PCR test for SARS-Cov-2 is insanely sensitive. Sensitive enough that you could only have virus particles in the lower part of your nostril (because the body's immune system is dealing with any that make it into the body) due to being in close proximity to soemone but have those swabbed and have a positive test result.

  • I had chicken pox three times as a kid, but didn’t know anyone else who got it more than once. Wasn’t a sickly kid other than that, just appears that I didn’t build resistance to one disease.

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