> Wasn't there news about how as a virus mutates over time it becomes less severe, but more transmissible?
That's sort of a rule-of-thumb, not a fixed law. In the case of covid there's a relatively long period of time (up to several days) in which people can spread the virus without yet showing symptoms. As such there isn't a lot of evolutionary pressure for it to become less virulent.
That's sort of a rule-of-thumb, not a fixed law. In the case of covid there's a relatively long period of time (up to several days) in which people can spread the virus without yet showing symptoms. As such there isn't a lot of evolutionary pressure for it to become less virulent.