From: Preventing Fecal-Oral And Fecal-Aerosol Transmission Of Covid-19
Though the main way Covid-19 spreads will always be from person to person, exposure to infectious waste and sewage has a part to play in starting outbreaks, especially in apartment buildings or schools where many people share close quarters at regular intervals of the day. ...
Fecal-aerosol transmission, according to a research paper published in Annals of Internal Medicine in December 2020, was suspected to be the cause of a Covid-19 outbreak in a high-rise apartment building in Guangzhou, China that infected at least nine people across three separate households. ...
Almost all of the environmental samples that came back positive were from the master bathrooms, giving the researchers reason to believe that the drainage pipes connecting the three units were to blame.
