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Am. J. Trop. Med. Hyg., 27(1), 1978, pp. 101-105
Copyright © 1978 by The American Society of Tropical Medicine and Hygiene

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An Outbreak of Bovine Cysticercosis in California*

Gerald F. Slonka, William Matulich, Edgar Morphet, Carl W. Miller AND Edmond V. Bayer
Department of Veterinary Microbiology and Department of Epidemiology and Preventive Medicine, School of Veterinary Medicine, University of California, Davis, California 95616, Bureau of Animal Health, Division of Animal Industry, Department of Food and Agriculture, San Luis Obispo, California 93401, Bureau of Animal Health, California Department of Food and Agriculture, Sacramento, California 95814, and California Department of Health, Berkeley, California 94704

Approximately 4.75% of the animals sent to slaughter from a southern California feedlot during a 9-mo period were found to be infected with the cysticercus of Taenia saginata. An investigation of possible transmission sources revealed that the feedlot was the most likely site of infection. One feedlot worker was found to be infected with T. saginata, and the pen infection patterns and other physical relationships indicated that he was the source of infection. The following recommendations were made: 1) treatment of the infected worker; 2) education of employees as to the mode of transmission and personal hygienic practices; 3) addition of sanitary facilities; 4) maintenance of animal source and destination records; 5) inauguration of a surveillance program to include parasitologic examination of employees prior to employment and periodically thereafter; and 6) restriction of unauthorized personnel from critical areas.

Accepted for publication May 24, 1977.


* Address reprint requests to: Dr. G. F. Slonka, USDA-FSQS, BARC-East, Bldg. 318, Beltsville, Maryland 20705.






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Copyright © 1978 by the American Society of Tropical Medicine and Hygiene.