That was partly because they didn't understand that the virus was airborne, so they took the wrong countermeasures. https://www.wired.com/story/the-teeny-tiny-

That was partly because they didn't understand that the virus was airborne, so they took the wrong countermeasures. https://www.wired.com/story/the-teeny-tiny-scientific-screwup-that-helped-covid-kill https://www.wired.com/story/the-teeny-tiny-scientific-screwu...