A parasitic infection transmitted to humans by cats affects billions of people and can alter their behavior. New research ...

Your cat may have worms if they are vomiting, losing weight, or you see worms in their stool. Cats may get roundworms, tapeworms, hookworms, or heartworms. You can treat a worm infestation with ...

Toxoplasmosis is a parasitic disease that you can get from cats, contaminated food, and more. It causes symptoms similar to the flu, such as chills, fever, body aches, fatigue, and headaches.

Data on US states with the highest infection rates for heartworm, Lyme disease, anaplasmosis, and ehrlichiosis is presented.

It might still affect human behavior in important ways. The infection is caused by a brain parasite transmitted by cats. The parasite lives in a sort of symbiosis with our furry friends.