Typhus cases continue to tick up in LA County. Here's how you can protect yourself

Typhus cases are increasing significantly in L.A. County, having reached a record 220 cases in 2025. This bacteria is transmitted from animals—such as rats and opossums—to humans through fleas but cannot be passed directly between people. Public health officials urge prevention by securing trash, keeping food away from wildlife, and ensuring pets receive flea control medication.