A few tips on how to prevent fleas.

Officials in a second part of Arizona have confirmed that fleas in the area tested positive for plague, an infectious disease infamous for killing millions of Europeans in the Middle Ages.

Navajo County Public Health officials confirmed Friday that fleas collected in the Taylor area have the disease. 

Last week, the Coconino County Public Health Services District confirmed that fleas found on prairie dogs in the Red Lake area had the disease. 

MORE: Fleas test positive for the plague in the Flagstaff area; more likely

The Navajo County Public Health Services District has notified residents and plans to treat and closely monitor the rodent burrows, which are on private property, according to a Navajo County press release on Facebook. 

The department advises that “an abundance of active prairie dogs doesn’t indicate disease is present. However, a sudden die-off of prairie dogs and rodents, may be an indicator of plague.”

Anyone in the area who notices a sudden die-off of rodents or rabbits should contact the department at 928-524-4750. 

How to avoid the plague

The plague can be transmitted to humans through a bite by an infected flea or by coming in direct contact with an infected animal.

Health experts are urging people to steer clear of anything that could possibly carry the disease, including fleas, rodents, rabbits and predators that eat them.

Symptoms of the plague usually appear a couple of days to a week after exposure. They include fever, headache, chills, and swollen lymph nodes, according to the Centers for Disease Control and Prevention.

If you have come in contact with an infected animal or think you may have been bitten, call a doctor immediately. The plague is curable when diagnosed and treated early.

One of the most common ways for humans to contract the disease is through their pets.

Reporter Cydney Henderson contributed to this article. 

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