In 1846 Dr Ignaz Semmelweis discovered hand washing lowered death rates. He wasn’t believed and eventually ended up in an asylum. Will we be telling this same story about masks and ventilation in the future? https://www.npr.org/sections/health-shots/2015/01/12/375663920/the-doctor-who-championed-hand-washing-and-saved-women-s-lives
🐦🔗: https://twitter.com/kirstler31/status/1596428025427791872