Hand hygiene is the key item for diarrheal diseases. If somebody else doesn’t wash their hands then you can end up putting their poop in your mouth. Wash your hands and don’t eat poop,Go team.

Covid is spread by people breathing. They breathe it out you can breathe it in. You can also get it on your hand and put it in your mouth. But even quadruple amputees can get covid without any trouble. Wiping stuff down is smart, but it is hardly sufficient.