4 ms·
What is the role of face masks, however effective, in a world where a variant of Covid-19 is endemic? Sooner or later we're going to catch it much as we catch i
by vixen99 5y ago
What is the role of face masks, however effective, in a world where a variant of Covid-19 is endemic? Sooner or later we're going to catch it much as we catch influenza which year in year out, kills up to an estimated 650,000 people every year.