California Plague Case Confirmed

A California resident tests positive for plague, highlighting ongoing health risks from zoonotic diseases in the western United States.

California Resident Tests Positive for Plague

A resident in South Lake Tahoe, California, has tested positive for plague, according to local health officials. The case is linked to a flea bite while camping, and health workers are tracing exposures. Separately, a person in Arizona died from plague last month. Plague is a bacterial disease that occurs naturally in the western United States and typically leads to about seven cases nationally each year, the CDC says.

Humans contract plague mainly through flea bites or handling infected animals. Symptoms such as fever, swelling of lymph nodes, nausea and weakness usually appear within two weeks of exposure. The disease can be treated effectively with antibiotics if caught early, and officials say the public risk remains low. Health officials emphasize precautions outdoors and for pets, especially in areas with wild rodents.

The case underscores the ongoing threat of zoonotic diseases in the West, even in places with strong health systems. It shows how outdoor recreation intersects with public health in real time, and how messaging matters when people are camping or hiking. While the immediate risk to residents is low, the episode highlights the need for clear guidance on prevention, prompt medical care, and cross-border awareness as cases emerge in neighboring states.

Experts also note climate and wildlife dynamics can affect the spread of rodent-borne illnesses. The incident invites policymakers and health agencies to reinforce surveillance, vaccination where available, and public education about pet protection and safe outdoor practices.

Highlights

Public health officials remind residents to stay informed as outdoor seasons continue.