Like all gatherings that spark transmission, always wonder what kinda of conditions the carriers end up. Do the majority show no symptoms. How many get sick that makes you absolutely miserable. Did any require hospitalization. Especially in certain age groups, like players on a baseball team or sailors on an aircraft carrier (keeping in min d that there are older people involved in each arena that you wish to protect). As colleges, for example, open up...do you shut down a class that has a case for two weeks, or two days. As with baseball, the inconsistent testing, or the need to wait for results, keeps pushing closure out and out and out. I imagine beginning tests are the quick group test that you hear right awy someone has it. Then you have to do the deep nose test which takes a little longer. And then a followup on any/all exposed to that person, which takes longer still.,