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New brucellosis infection reported in Wyoming

Herd in Teton County, Wyo., not epidemiologically linked to previous case announced in October.

Wyoming state veterinarian Dr. Jim Logan said Nov. 13 he has been notified by the Wyoming State Veterinary Laboratory and the National Veterinary Services Laboratory that there is a new case of brucellosis in a cattle herd in Teton County, Wyo., which is in the Wyoming Brucellosis Designated Surveillance Area.

Serologic testing at both laboratories has shown reactor-level results on five animals from one herd, Logan said, noting that further testing, including bacterial culture, will be conducted to confirm the serology results.

Logan and assistant state field veterinarian Dr. Thach Winslow are working with the owner of the infected cattle and are conducting an epidemiologic investigation. The herd with known Brucella-positive animals is under quarantine at this time. No sexually intact cattle can be moved from the quarantined premises until conditions of the quarantine release are met. At this time, Logan said he does not believe there are any additional herds epidemiologically linked to this case.

Logan said this case is not related to the case found in early October in Park County, Wyo., and there is no epidemiological link between the two cases.

Brucellosis is a bacterial disease that can cause cattle, elk and bison to abort their pregnancies, typically late term. All of Wyoming’s brucellosis cases since 1988 have been determined to have been caused by transmission from infected wildlife to cattle or domesticated bison.

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