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

Parasites are one such ... The most common hookworm that infects humans is Ancylostoma duodena, and it causes a disease called ancylostomiasis. You may have no symptoms at all, or you may notice ...

It causes symptoms ... risks to humans, including the risk of spreading disease. Cats in particular can carry a parasite known as Toxoplasma gondii. This is one of the most common parasites ...

But, for most people, it is latent and lacks clinical symptoms. It might still affect human behavior in important ways. The infection is caused by a brain parasite transmitted by cats. The ...