PBS did a documentary I happened to watch last month. It reveals that mailmen were a serious vector of transmission, even when quarantines were put in place. Me

PBS did a documentary I happened to watch last month. It reveals that mailmen were a serious vector of transmission, even when quarantines were put in place. Medicine's main disadvantage was not understanding that it was viral and airborne, so that quarantines could be more effective. Doctors were looking for a bacterial cause up to the end of the pandemic. https://www.youtube.com/watch?v=l0juBE-ra3A https://www.youtube.com/watch?v=l0juBE-ra3A