This may have something to do with it, 83% of the cruise ship did NOT get infected even though population was mostly elderly people: https://twitter.com/ecosens

This may have something to do with it, 83% of the cruise ship did NOT get infected even though population was mostly elderly people: https://twitter.com/ecosensenow/status/1239952942234402816?s=21 https://twitter.com/ecosensenow/status/1239952942234402816?s...