Zoonotic diseases and infections are those transmitted between humans and animals. A zoonotic agent may be a bacterium, a virus, a fungus, or other communicable disease agent. Although many anti-cat campaigns use the fear of zoonotic diseases to push for the eradication of feral cats, history has shown us the important role cats have played in preventing the spread of disease (i.e. the bubonic plague). While it is true that cats can transmit a few diseases to humans, the Cornell Feline Health Center reports you are much more likely to contract infectious diseases from other humans than you are from your cat. In this PDF document below, we list a few of the zoonotic diseases that can be transmitted from cats to humans and the precautions that can be taken to prevent transmission and the precautions that can be taken to prevent transmission, along with a list of studies that show how association with cats can actually improve human health.