Orange County: Rocky Mountain Spotted Fever Confirmed in County Park

Rocky Mountain Spotted Fever confirmed in County park, Orange County Vector Control District

Rocky Mountain Spotted Fever confirmed in County park. A Pacific Coast Tick, Dermacentor occidentalis that was collected in Aliso and Wood Canyons Wilderness Park tested positive for Rocky Mountain Spotted Fever (RMSF). Orange County Vector Control District (OCVCD) collected the tick on January 29, 2007 as part of an ongoing surveillance program. Samples were submitted to the California Department of Health Services (DHS), although the actual testing was done by The Centers for Disease Control and Prevention (CDC). The District received confirmation on the positive tick from DHS on, March 30, 2007.