Bubonic plague found on Arizona fleas

Fleas in Arizona have tested positive for the bubonic plague, prompting health officials to advise residents to "take precautions" to reduce their risk of becoming infected with the disease, which killed millions during the Middle Ages.

Navajo County confirmed on Friday that fleas in the area have tested positive for the disease, once known as 'the Black Death.'

"Navajo County Health Department is urging the public to take precautions to reduce their risk of exposure to this serious disease, which can be present in fleas, rodents, rabbits and predators that feed upon these animals," the county wrote in a post on Facebook.

"The disease can be transmitted to humans and other animals by the bite of an infected flea or by direct contact with an infected animal."

The county also urged people living, working, camping, or visiting the affected...