The Orange County Mosquito and Vector Control District (OCMVCD) has notified the City of Fullerton of an increased risk of flea-borne typhus in certain areas of the City, following the first human case reported in Fullerton for 2026. While the risk remains low for most residents, OCMVCD is taking precautionary public health measures to reduce the potential for exposure.

OCMVCD is posting signs and distributing informational materials in multiple languages in affected areas to raise awareness. These notices will remain in place until final inspections and reports are completed. OCMVCD has also notified local animal care agencies and City leadership as part of its coordinated response.

Flea-borne typhus is spread by infected fleas and can be prevented by avoiding contact with wildlife, securing trash to limit animal access, and ensuring pets are treated for fleas. Additional information about flea-borne typhus, including prevention tips, is available at ocvector.org/flea-borne-typhus. The health and safety of the Fullerton community remains a top priority, and residents are encouraged to stay informed and take proactive steps to stay safe.