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So that makes two people in the entire world who are known to have re-tested positive. Immunity is never 100%. Why would we highlight 2 cases out of 30 million

• mattigames 6y ago
  The virus the second time it was a different strain, so 2 people can become millions if the virus keeps mutating, let's remember it doesn't even have a year in existence so we know near nothing about how it mutates.
  • zaroth 6y ago
    In this fictional hypothetical, we get really good at manufacturing new vaccines, and we also get really really good at targeting suppression policies at only the highest risk individuals. Because for the majority of the population it’s less of a concern than annual flu. Back in reality, coronavirus mutates much slower than flu, and vaccines are targeted at particularly stable features even within an overall fairly stable structure.
    • deleted 6y ago
      [deleted]