California Animal Health & Food Safety Laboratory System

Photo: Bacteriology


The Bacteriology section's mission is to provide full-service, diagnostic support for bacterial, mycotic and parasitic diseases of livestock and poultry. The bacteriology section works in conjunction with other disciplines (pathology, virology, immunology and toxicology) when bacteriologic, mycologic or parasitologic involvement in a case is suspected. Diagnostic problems requiring only bacteriology, mycology and/or parasitology testing are coordinated through the Bacteriology section.

The Bacteriology section also has a regulatory mission, providing diagnostic support for the Brucella eradication program, and the National Poultry Improvement Program for control of salmonellosis and mycoplasmosis, traceback investigations for Salmonella serotype Enteritidis and the trichomonosis control program. The Bacteriology section supports surveillance and investigative activities of regulatory agencies for all other bacterial, mycotic and parasitologic diseases of economic and zoonotic importance. The Bacteriology section is also responsible for incorporating new technologies that enhance or expand bacteriology services for CAHFS.

The Bacteriology section provides full-service diagnostic bacteriology, mycology, and basic parasitology service. Capabilities exist at all laboratory sites for isolation of aerobic, microaerophilic and anaerobic bacteria, Mycoplasma isolation, antimicrobial susceptibility testing, and fungal isolation. Cultures for Brucella are also performed in some of the laboratories. Basic parasitology testing is also performed in some of the bacteriology sections in CAHFS.

Tests required for specific animal species are performed only at laboratories serving those species. For example, Leptospira fluorescent antibody testing is performed at the Davis, Tulare and San Bernardino laboratories because mammalian cases are received at these sites. The Turlock laboratory, which deals strictly with avian species, does not perform this test. Specialized procedures performed on a limited basis but required by a number of laboratories in the system are, in some cases, provided by a specific laboratory in the system.