What is the plague in Yosemite squirrels?
What is the plague in Yosemite squirrels? Plague is a disease caused by a bacterium, Yersinia pestis, that can be transmitted to humans via rodents and their fleas. Plague in Yosemite is most commonly associated with fleas found on ground squirrels and chipmunks. Plague in humans is very rare, with only about ten cases per year in the United States.
No records found.