The report assumes everybody can get infected i.e. there is no natural immunity. The cruise ship case on the other hand (mostly grey haired guests) seemed to s

The report assumes everybody can get infected i.e. there is no natural immunity. The cruise ship case on the other hand (mostly grey haired guests) seemed to suggest otherwise, 83% did not catch it: https://wattsupwiththat.com/2020/03/16/diamond-princess-mysteries/ https://wattsupwiththat.com/2020/03/16/diamond-princess-myst...