(KTXL) — A resident of South Lake Tahoe, California, has tested positive for the plague, health officials have confirmed.

Few details were made available about the resident, but the El Dorado County Environmental Management Division and Public Health Division said the patient is under the care of a medical professional while recovering at home.

The case remains under investigation. It is believed that the person became ill after being bitten by a flea while camping in the South Lake Tahoe area.

“Plague is naturally present in many parts of California, including higher elevation areas of El Dorado County," said Kyle Fliflet, El Dorado County’s Acting Director of Public Health. “It’s important that individuals take precautions for themselves and their pets when outdoors, especially while walking, hiking, and or camping in areas where wild rodents are present."

The plague is caused by the Yersinia pestis bacterium, which is mostly transmitted by the bites of fleas that have the bacteria from infected squirrels, chipmunks, and other wild rodents. Dogs and cats may also bring plague-infected fleas into the home, according to health officials. People can get the plague if bitten by infected fleas.

"Plague can be prevented by avoiding contact with wild rodents, and by keeping pets away from rodent burrows," public health officials said.