Flea-borne Typhus Spreads: L.A. Cases Soar

Flea-borne typhus, a bacterial illness rarely seen in modern times, is making an alarming comeback in Los Angeles County. As of 2026, confirmed cases have already surpassed the previous year's total, with health officials reporting a sharp increase.

This surge is particularly concerning as approximately 90 percent of infected individuals require hospitalization. The disease is transmitted through fleas, commonly found on animals such as rats and opossums. Humans can contract typhus when flea feces enter the body through minor cuts or by rubbing the eyes.

Symptoms, which may take up to two weeks to appear, include fever, chills, body aches, and a rash. Severe cases can lead to coughing, gastrointestinal issues, confusion, and even death.

To combat the spread, authorities recommend consistent flea control for pets, such as topical treatments and flea collars. Keeping outdoor spaces tidy to avoid attracting rodents and other wildlife, sealing crawl spaces, and ensuring trash bins are closed are also vital. Avoiding contact with stray animals is strongly advised.

Despite the rising numbers, flea-borne typhus is treatable with antibiotics, especially when diagnosed and treated early. However, delays in diagnosis can lead to more severe illness, highlighting the importance of awareness and prompt action.