Returned from cruise January 21. Felt mild symptoms since the day before and tested positive for Covid when I got home. Two of the five of us who sailed together got it. So far the others are ok. Mine was a mild case, my friend is much sicker but seems to be getting better. Didn't feel sick before traveling or see anyone who was sick onboard. We probably caught it in a crowded elevator or waiting to get into dining room. Perhaps we caught it the weekend before on the flight down to Florida. I had Covid last October after returning from Austria and should have still been immune. Different variants I guess. Covid would not keep me from sailing again - it's all over the place.