[rthomas6]

He flew from Wuhan to Seattle. Presumably there were many other people on that flight. How likely is it that another passenger, who was asymptomatic or just didn't seek medical care, was the real patient zero?

[alex_young]

I didn’t see any indication that this was a direct flight. Was there such a flight or did this person transfer somewhere in China?

[rthomas6]

Oh. True. I didn't think about that.