I remember hearing about this for the first time not too long after Covid started, there must be another study that is 1-2 years old. Edit: * Here is one from

I remember hearing about this for the first time not too long after Covid started, there must be another study that is 1-2 years old. Edit: * Here is one from December 2021: https://www.public-health.uiowa.edu/news-items/study-on-toilet-flushing-in-virus-exposures-and-disease-transmission/ https://www.public-health.uiowa.edu/news-items/study-on-toil... * Here is another one from May 2020: https://aip.scitation.org/doi/10.1063/5.0013318 https://aip.scitation.org/doi/10.1063/5.0013318 ("...It is clear from daily experience that flushing a toilet generates strong turbulence within the bowl. Will this flushing-induced turbulent flow expel aerosol particles containing viruses out of the bowl? This paper adopts computational fluid dynamics to explore and visualize the characteristics of fluid flow during toilet flushing and the influence of flushing on the spread of virus aerosol particles....")