
Pets can sometimes be reservoirs of diseases that infect humans. Most viruses and organisms that cause illness are species specific, or specially adapted to the host they infect. When a disease is able to make the leap from our pet to us, it is referred to as zoonotic.
The most important historical zoonotic disease is the Plague that ravaged Europe in the 1300’s killing tens of millions of people. Primarily a disease of rats and wild rodents, the Plague is transmitted from animal to animal by the bites of infected fleas, with humans as the accidental host when the rat dies and the fleas look for a warmer host.
Today, the number of potential zoonotic diseases is impressive. Let’s look at some of the more common dog and cat diseases that may pose a threat to humans.
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