Yersinia pseudotuberculosis infections in goats and other animals diagnosed at the California Animal Health and Food Safety Laboratory System: 1990-2012.
Yersinia pseudotuberculosis is a recognized zoonotic food-borne pathogen; however, little is known about the ecology and epidemiology of diseases caused by the bacterium in California. The objective of the current study was to contribute to the knowledge of the diseases caused by Y. pseudotuberculosis in goats, the animal species most frequently reported with clinical yersiniosis to the California Animal Health and Food Safety Laboratory System, to better understand the epidemiology of this disease. A 23-year retrospective study was conducted to characterize the syndromes caused by the bacterium in goats and their temporospatial distribution, and to determine the number of cases in other animal species. Yersinia pseudotuberculosis-associated disease was diagnosed in 42 goats from 21 counties, with a strong seasonality in winter and spring. Most cases (88%) were observed within particular years (1999, 2004-2006, 2010-2011). The most frequently diagnosed syndrome was enteritis and/or typhlocolitis (64.3%), followed by abscessation (14.3%), abortion (11.9%), conjunctivitis (4.75%), and hepatitis (4.75%). Among other animal species, 59 cases were diagnosed in non-poultry avian species and 33 in mammals other than goats.
1Federico Giannitti, California Animal Health and Food Safety Laboratory, 620 West Health Sciences Drive, Davis, CA 95616. fgiannitti@ucdavis.edu.
Federico
F
Giannitti
Bradd C
BC
Barr
Bárbara P
BP
Brito
Francisco A
FA
Uzal
Michelle
M
Villanueva
Mark
M
Anderson
D000818:Animals; D001717:Birds; D002140:California / Q000453:epidemiology; D015511:Goat Diseases / Q000453:epidemiology / Q000382:microbiology*; D006041:Goats; D012189:Retrospective Studies; D012621:Seasons; D015011:Yersinia pseudotuberculosis / Q000302:isolation & purification*; D015012:Yersinia pseudotuberculosis Infections / Q000453:epidemiology / Q000382:microbiology / Q000662:veterinary*; D015047:Zoonoses / Q000453:epidemiology / Q000382:microbiology*
Caprine; epidemiology; pathology; temporospatial distribution; yersiniosis; zoonosis