system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is it okay to eat under-cooked beef or eggs, but considered too risky to eat under-cooked chicken or pork?
gpt
Unless it is ground up, beef only has bacteria that are harmful to humans on its outer surface.  Look up "Pittsburgh Rare" for the extreme way to have a steak.

Eggs are self-contained, no exposure to the outside so safe to eat.

Chicken and Pork both contain bacteria with the flesh that is harmful to humans.  So you need to cook it all the way through or you'll get sick.