No. They live normal lives. They have wives and kids. They travel. Just like everyone else. The puzzling thing to me is the drop in ALL respiratory diseases aboard ship, at least in the three companies I know of.
Last winter the warning was for an increase worldwide in flu etc. And there was a spike in some, like RSV in kids. But the spike quickly subsided. A mystery.
So maybe it is just the effect of increased hand washing, sneeze shields, etc. everywhere. (Likely to be forgotten soon.)
I’m not complaining. In three years the only thing I’ve caught was C19 and it lasted three days.