On University going virtual... Here at Duke, the test positivity is 2.5x than any past peaks (15% positive during peaks vs 3-5% during slack vs ~40% in recent days/weeks).. virus needs host so survive and thrive and spread... You can't stop the spread, you can decrease it. There is staff shortage because they became positive. There is a risk of staff spreading the infection to the "vulnerable" that this whole discussion is centered around..