Your phrasing suggests that it's very obvious, yet you are blaming salads as the real public crisis in an earlier comment. Fact is, breeding animals and raising them for food is going to keep resulting in pandemics. Like the one that we are currently going through.

Don't raise livestock or breed/catch wild animals, and the contact between humans and animals drastically lowers. Then pandemics don't happen. If that market in Wuhan didn't exist, we wouldn't be having this conversation today.