Pets bring us joy and unconditional love. But sometimes they can bring us illness. Infectious diseases can be passed between animals and humans. These diseases are known as zoonoses. Zoonoses can be spread through direct contact, sometimes through insects, and sometimes via the animal's environment.
Let's face it. Animals do some gross things. Dogs drink from filthy puddles. Cats kill birds and chipmunks. And sometimes, our pets even—gasp!—bite and scratch. All of these things and more can cause the spread of infections and diseases between animals and humans.