"The novel coronavirus is behaving differently in patients in northeast China who have contracted it recently compared with early cases, incubation period of the virus in patients in the northeast was longer ... taking longer to recover"https://news.yahoo.com/china-reports-five-covid-19-004214565.html …
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Replying to @HbdNrx @toad_spotted
It mutated to spread optimally; once it's in a particular person the incentive is to mutate back to one optimized for infecting cells within the same person. Feline infectious peritonitis acts this way in cats - in 10% of cases it mutates to a deadly version and kills the cat.
12:17 PM - 21 May 2020
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