Transfer of respiratory pathogens Indoor airborne spreading of COVID-19
PROFESSOR: So besides our physical expectation that a virus such as SARS-CoV-2, coronavirus, could be transmitted through respiratory droplets, especially aerosol droplets through the airborne route of transmission, there is substantial evidence-- both epidemiological evidence and some physical evidence-- to support this hypothesis. So first, let's go through some of the epidemiological evidence. This is a very small fraction of what is available to date. So one of the first incidents that gave a sense there might be airborne transmission was a religious event that took place at the Tiantong Temple in Ningbo China, where there were hundreds of people in attendance. But in particular, there were two buses that brought worshippers in one-hour bus rides to this location. And on one of the buses was what was known to be the first infected person with COVID-19, entering this region after having had contact with others from Wuhan China, the initial source of the outbreak. A...