I think that's the point

This, but also isn't that how genetics works? You're not going to see a native Chihuahua thriving in the arctic.

(But it's probably something about what countries actually do testing, etc. )

Many diseases seem to not exist in New Zealand.

Acet....achet....ackt.see.tomofin....better known as tylenol THANK YOU FOR YOUR ATTENTION TO THIS MATTER

My favorite part:

Some culture-bound syndromes appear with similar features in several cultures, but with locally specific traits, such as penis panics.

If you see this comment, it could be interesting to get an idea of how many people:

a) Thought OP posted this in like a "Look at how dumb this is" way, or,

b) Thought OP agreed with the idea presented in the image.

I think this might have to do with communication climates (I am so far from an expert in anything) and how a climate of disagreement with peers and prevalent media can affect how a message is received. In other words, if surrounded by stupid people with stupid ideas it's easy to assume the next stupid idea has come from a stupid person.

Poe's Law. Without a clear indicator, a lot of people took it as OP believing this.

The US should just switch to paracetamol. Problem solved!

Calm down, you're in a memes channel, and OP here posts science memes all the time. I'm very sure this is satirical

Just block the idiots.