Tick-Borne Disease Prevention

What You Need to Know

April 07, 2023

Tick exposure can occur year round, but ticks are most active during warmer months (April–September). Ticks become infected with germs (like bacteria, viruses, and parasites) when they feed on the blood of infected animals. Ticks can spread these germs to people and other animals when they bite and feed on their blood. View Tick-Borne Disease Prevention for more information about how to prevent tick-borne disease.

Female & male ticks: Western blacklegged tick (Ixodes pacificus) and Pacific Coast tick (Dermacentor occidentalis)