The California Department of Public Health routinely tests various types of animals for evidence of infection by plague bacilli. The map displays data for 2004 for tests on carnivores, rodents, and pets.

Click one of the following for the Vector-borne Disease Bulletins from the Vector-borne Disease Section, California Department of Public Health.

May 2007: Vector-Borne Disease Bulletin June 2007: Vector-Borne Disease Bulletin Sept 2007: Vector-Borne Disease Bulletin     2008   Feb 2008: 2007 Summary Edition of the Vector-Borne Disease Bulletin April 2008: Vector-Borne Disease Bulletin August 2008: Vector-Borne Disease Bulletin October 2008: Vector-Borne Disease Bulletin

Plague positives 2007

Plague positives 2006

Plague positives 2005

Plague positives 2004

In California, there are several fleaborne diseases associated with fleas. Probably the most important is plague. Active plague surveillance has been underway in the state for many years by the California Department of Health Services.

 

Photo credit Edman/McClelland collection

Vectorborne diseases in California having significant public health importance include infectious diseases whose pathogens are transmitted by, or in association with, mosquitoes, ticks, fleas, lice, and rodents. Pediculosis is a non-infectious disease that results directly from infestations of humans by lice, usually head lice.