Lyme Disease

Lyme Disease is a bacterial infection from the bite of an infected Deer Tick. Not all ticks, nor even all Deer Ticks, carry Lyme Disease.

The Health Department’s Lyme Disease Prevention Program works with the public and with health care providers to reduce the incidence of Lyme Disease in Orange County. To help prevent Lyme Disease, Department staff provide educational materials and assist in the identification of ticks that potentially carry Lyme Disease. Staff also assist in appropriate referrals for Lyme Disease diagnosis and treatment.

For more information view the Questions and Answers About Lyme Disease page.

Lyme Disease Confidential Case Report Form

View and use the Lyme Disease Confidential Case Report Form (PDF) document to report a case of Lyme Disease to the County Health Department.

West Nile Virus

Infected mosquitoes spread West Nile virus that can cause serious, life-altering, and even fatal disease. Experts believe West Nile virus is now established as a seasonal epidemic in North America that flares up in the summer and continues into the fall.

The easiest and best way to avoid West Nile virus infection is to prevent mosquito bites.