A few years ago I went on vacation for a week with a half-dozen friends in an Airbnb and spent the entire time miserably sick with some kind of respiratory illn

A few years ago I went on vacation for a week with a half-dozen friends in an Airbnb and spent the entire time miserably sick with some kind of respiratory illness. I was similarly determined not to get anyone else sick (and I was sick from the start, so avoided any asymptomatic period). I was fastidious about distancing and sanitizing, and any time I needed to cough I'd step outside of the house. Nobody else got sick. Is the sample size here large enough to determine anything? No idea, but I like the anecdote.