2. Cats: Toxoplasmosis
Toxoplasmosis is a parasite from cat poop that crawls into human brains and literally changes how you think. It literally makes you LOVE CATS. And eats your brain.
3. Birds: Parrot Fever
Psittacosis, a.k.a. parrot fever, is form of chlamydia that parrots get that they can pass to humans without eve having sex with them Messed up and totally true.
5. Cats: Cat Scratch Fever (It’s a Real Thing!)
Not just a Ted Nugent song, about half of all outdoor cats have been exposed to this disease. In humans, it can cause painful and itchy swelling at the scratch site, as well as swollen lymph nodes. However, you probably won’t die.