Looks like the S. Korea "reinfections" were just false positives. Good sign for building herd immunity.
Reinfection possibility just don't seem to line up with anything I've ever heard.
Maybe it was wishful thinking. If recovered people can move freely about the country, it would be a start.
...that exposure confers some level of immunity. It does in monkeys, evidently.
...is that it may be like the flu vaccine, in that we need to get it every year.
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