[9YearLurker]

None of the attendees at the event he went to are being required to stay in isolation. What could go wrong?

https://www.thedartmouth.com/article/2020/03/dhmc-employee-with-coronavirus-broke-isolation-second-person-infected

[Sarah Barracuda]

someone else got sick and the rest are not required to stay home seriously

[RummyChick]

This should be a good test on how this will spread. Everyone at that event was exposed even if they did not go up to the sick individual.