There have been reports of YouTubers I watch getting sick after eating food in third world countries. However, these countries are also home to a large number of people who do not get sick from eating the same food. I think this suggests that the locals may have developed stronger immune systems. What do you think?
Depends on what part of the 3rd world we are talking about. Majority of African nations for example do not have UHC yet. Asia is a better off in this regard but not the entire continent.