system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How come Chinese don't get sick more frequently, or even start an epidemic, seeing as how they treat and handle meat?

Even in supermarkets all kinds of meat are handled poorly.   
Basically anyone is free to touch the meat with their bare hands.   
It's even worse in the summer with butchers setting up their own "shop" out on the street without any kind of refrigeration.
gpt
Are you kidding me? Chinese people don't trust food at all and have culturally ingrained habits to protect against food poisoning. To name just a couple:

* Only eat things that are well-cooked. If it's not piping hot from a street vendor, don't trust it. This is also one reason steak isn't popular in China - why are you eating partially raw meat? Doesn't that seem like a terrible idea?

* Don't eat raw vegetables. People are more relaxed about this in some contexts (like various liangbang cai), but the idea of salad is still pretty out there. WTF - you're eating leafy greens that have been near dirt and god-knows-what raw?! Do you have a death wish?

* Only drink water that's been boiled. This is why Chinese restaurants (read - the ones in China, not Panda Inn on State St) serve hot water. Also helps explain the popularity of tea, though baikaishui is the bare minimum. Key word: "Kai" - it's been boiled.

* On the kitchen prep side, you wash everything - even raw meat - before doing anything with it. 

* Scald EVERYTHING. In the old days, you would order a pot of hot water and tea and scald every dish at your table before eating in a restaurant. Now, most restaurants have plastic-wrapped dishes and utensils (ostensibly-autoclaved), or disposable goods. This also explains that extra 1 or 2 kuai fee at a restaurant - that's what it costs to keep your dishes clean. 

* Live animals are popular. That way, 1. you know it's fresh and 2. you control the butchering yourself.

TL,DR: Chinese people have been living in densely-populated urban areas for millenia, and are paranoid about cleanliness.