The following link is to a table showing plague-positive rodents tested in conjunction with the California Department of Public Health, Vector-borne Disease Section Plague Surveillance Program.

Plague-positive rodents 2008

The following table contains the results of tests for evidence of Borrelia infection in ticks collected in California in 2008. The tests were conducted by the California Department of Public Health, Vector-Borne Disease Section (CDPH-VBDS), and by the United States Army Center for Health Promotion and Preventive Medicine - West (US Army).

In 2007, 482 blood samples were collected from wild carnivores and 914 blood samples from wild rodents in connection with the statewide plague surveillance program conducted by the Vector-borne Disease Section of the California Department of Public Health. Veterinarians submitted 5 samples from domestic pets. Plague was confirmed in one domestic cat from Kern County. Plague antibodies were detected in 37 of 335 coyotes, 12 of 47 black bears, and one of 4 gray foxes. Among wild rodents, antibodies were detected in 23 of 432 California ground squirrels, and one of 237 chipmunks. Additionally, samples from 124 feral pigs were negative. All data from 2007 Annual Report, Vector-Borne Disease Section, California Department of Public Health.