The Chinese don’t produce ALL of these types of diseases, but they are MOST likely responsible for this one from eating unclean animals.
Bubonic plague
Asian flu
Hong Kong flu
Swine flu
Unclean animals weren't the cause. Their unmitigated filth was/is. I'm sorry if that offends you but check it out with Google. I've been to China, Africa, the Middle East (lived there five years), Europe, India and south of our border (lived there two years).
I've seen and smelled filth and China wins the booby prize for filth.