Volume 27, Issue 1
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



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 . 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 , 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.


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