I can imagine US schools closed for *two* months! Every year!!
In fact, that's why the flu and cold cycle follow the school year, where we have our yearly incubation and cross contamination of every new mutation of the viruses in snot-nosed petri dishes slobbering over one another. By the time we hit the cold months, the spread is pandemic. And by Spring, it's run it course and those already infected are now immune to reinfection.
That's why it's a false belief that the Coronavirus will abate in the warmer weather. It hasn't run amok in schools this past year. By May, if this isn't contained (and likely it won't), it will be peak corona-flu season .
Over and over and over again, studies show temperature has no effect on "catching a cold". Seasonal weather affects human behavior, and human behavior affects vectors of infection.
And people who sell off their stock are dumb. Sell low and buy high! When the Great Recession hit, I held on to my stocks and they were back and higher a few years later. And this isn't going to be that bad.