The COVID-19 case spike in the summer of 2020 and earlier attempts to rely on personal responsibility, like wearing seat belts, showed that mandates make a difference.
Universities have seen widespread COVID-19 outbreaks this fall. Now students are preparing to travel for the holiday, and public health officials are worried.
The new coronavirus, SARS-CoV-2, spreads faster than the H1N1 influenza virus and is much deadlier. SARS-CoV-2 is particularly skilled at keeping cells from calling out for help.