The source of the problem was traced to one sire using genetic testing. BVD continues to be a concern on many ranches. Persistently infected animals were identified and support was given to veterinarians and producers from throughout the state. Affected ranches came from throughout the state, ranging from Weston to Lincoln counties. Trichomonas infection was found in bulls from ranches in an unprecedented 10 counties in 1999, which is up from 3 counties in 1997 and 4 counties in 1998.
Trichomonas infection can cause devastating reproductive losses in cattle.
This program has lent support to Dr. Logan and the Wyoming Livestock Board as they worked to devise rules to help control the disease in this state. The rabies epizootic continues to be monitored in Wyoming. As this goes to press, skunk rabies has broken out in the Riverton-Lander area for the first time in recent memory. Members of the WSVL are currently investigating this epizootic. Diagnosticians at the WSVL are following Malignant Catarrhal Fever in bison.