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It was Tuesday, November 23, 1982 and I was an intern at the Caine Veterinary Teaching Center in Caldwell, Idaho. The Teaching Center had a faculty of six besides me, and we met after each two-week rotation of senior students from Washington and Oregon State veterinary medical schools to review the students and get updates on state veterinary issues. Among the issues presented by our director, Dr. Stuart Lincoln, was his appreciation for all the cold weather we had just experienced. unbeknownst to me, there was an outbreak of Vesicular Stomatitis in eastern Idaho. Dr. Lincoln was sure we’d be spared in our southwestern corner of the state because mosquitoes, the vectors that transmit the disease, should have died and transmission would stop. That was the conventional wisdom of the day and regulatory veterinarians were reporting that the spread of Vesicular Stomatitis had subsided. Moments later, Delores, one of the Center’s receptionists, quietly slipped into the conference room and handed me a note. The note said one of the dairies we serviced had noticed a few large blisters on the teats of some incoming heifers and they wanted me to come out to take a look. So began the saga of an outbreak of Vesicular Stomatatis, a disease clinically indistinguishable from Foot and Mouth Disease (FMD). Despite the recent twenty-four “vector killing” frosts in Idaho, the event Dr.
Lincoln had just assured us wouldn’t happen… happened!

This turned out to be quite the experience for a young, enthusiastic veterinarian. All of a sudden, I was on the frontline of a new presentation of a disease outbreak. The disease continued to spread within the herd until December 16, despite the fact that there was many more below-freezing days. I observed oral, feet, and teat lesions on the 332 cows that I examined. Nearly two thirds of the cows had lesions, many of them with lesions at multiple sites. Oral lesions were the most common, which resulted in excessive amounts of saliva contamination in the waterers. We were able to isolate the virus from one of the water samples. Animal-to-animal transmission was the means to the spread the virus in this outbreak.

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