Incubation period?
Read yesterday the all-clear is 42 days.
The incubation period is 21 days. At 21 days, the infectious part has (supposedly) run it’s course. They double that and if no new outbreaks develop, they can consider that incident closed.
It’s smack dab in the middle of the range.
The question is, did this guy recognize it quickly?
I would hate to rely on mass transit, or movies, or large gathering events for my living in Dallas. On the other hand, if you are the rep for Tyvek suits in the greater Dallas area, you just hit your goals for the next quarter. Merry Christmas!