San Mateo County: Lyme Disease Surveillance 2006

Entomology Report February 2006, San Mateo County Mosquito Abatement District

Tick surveys have yielded total of 1,091 western black-legged ticks (Ixodes pacificus) thus far this season. Parks with the highest density of I. pacificus adults per mile included San Pedro Valley, Edgewood, and Huddart County Parks, and municipal parks at Water Dog Lake in Belmont and Big Canyon Park in San Carlos. The prevalence of infection county-wide remains at 3%.

Park                           Ticks/Mile
San Pedro Valley County Park       83
Water Dog Lake Park                20
Big Canyon Park                    74
Edgewood County Park               53
Huddart County Park                23

Previous related entries:

San Mateo County: Lyme Disease Surveillance 2006, January 2006
San Mateo County: Lyme Disease Surveillance, November/December 2005
San Mateo County: Lyme Disease Surveillance, October 2005
San Mateo County: Lyme Disease Surveillance, January 2005

San Mateo County: Lyme Disease Surveillance 2006

Entomology Report January 2006, San Mateo County Mosquito Abatement District

Location            # Ticks   Ticks/  Female/   # Positive/
                  collected    mile     mile    # tested
Big Canyon Park         316    1.40     0.6     Results Pending
Crystal Springs Trail   118    0.30     0.2     3+/118
Edgewood Park            41    0.9      0.4     Results Pending
Huddart Park             50    0.4      0.2     Results Pending
Junipero Serra            0    0        0       Results Pending
Laurelwood Park          14    0.2      0.04    Results Pending
San Pedro Valley        174    1.2      0.7     Results Pending
Water Dog Lake           36    0.4      0.2     Results Pending
Grand Total             749    0.6      0.3     Results Pending

Previous related entries:

San Mateo County: Lyme Disease Surveillance, November/December 2005
San Mateo County: Lyme Disease Surveillance, October 2005
San Mateo County: Lyme Disease Surveillance, January 2005

Tick-Borne Diseases in Santa Cruz County 2005

Annual Report 2005, Santa Cruz County Mosquito and Vector Control District

The County had six reported cases of Lyme disease, and one reported case of relapsing fever in 2005 from tick bites. Lyme disease continues to be the most important vector-borne disease in the State, with 94 reported cases in 2005. As part of an effort to enhance services, MVC now accepts, identifies, and submits ticks for Lyme disease testing for persons who have been bitten. Prevention of bites and recognition of symptoms by the public and physicians are the most recommended methods of dealing with tick-borne disease. There is currently no efficient means to control ticks other than clearing brush.