You can add a new worry to the health concerns caused by Covid-19: a sustained shortage of a medicines needed to combat the coronavirus and countless other illnesses. Across the U.S. and Europe, 29 out of 40 drugs used to combat the coronavirus are currently in short supply. And those shortages are expected to grow even worse as the number of Covid-19 cases and hospitalizations surge in the coming winter months, according to a new report by the Center for Infectious Disease Research and Policy at the University of Minnesota