The BJS, British Journal of Surgery, has an article entitled:
Flatus: An aerosol generating concern during the COVID-19 pandemic, DOI: 10.1002/bjs.11920, BJS 2020; 107: e465
Yes, you got it, another human opening to get masked! So folks, no beans, stay off the raisins, low on bran, got it. Blazing Saddles will not do! Let's see what the Govs will do with this one! Six feet may not be enough....