Some facts regarding outdoor transmission of COVID 19 May 1, 2021 10:58 am by IWB https://www.cbc.ca/radio/whitecoat/evidence-suggests-outdoor-covid-19-transmission-is-low-here-s-what-you-need-to-know-1.5997300 https://academic.oup.com/jid/article/223/4/550/6009483