system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why can I eat raw fish but not raw chicken or pork?

Also, the same for undercooked beef.
gpt
Chicken and pork are more likely to be contaminated with the sort of bacteria and parasites that are harmful to humans. This is partially due to the conditions they are raised and slaughtered in, partially due to the biological similarity between certain animals and humans, partially due to how long the meat is left to 'hang' and age to let the blood run out/flavour develop.

If you raised a pig in sterile conditions and spent the money to know that it was completely disease and infection free, you could eat the resulting pork raw safely if you wanted. It's just a lot cheaper, easier and tastier to cook it.