Thursday, March 21, 2013

New Test Could Detect Equine Lyme Disease Sooner (AAEP 2012) - Full Article

By Nancy S. Loving, DVM • Mar 17, 2013 • Article #31519

Diagnosing Lyme disease in horses is tricky business; not all horses that contract the causative bacterium, Borrellia burgdorferi, from infected ticks develop the debilitating condition, and those that do might not show signs until several months after infection. As with many diseases, early detection can mean swifter resolution, along with better recovery, so Cornell researchers have been searching for reliable ways to detect B. burgdorferi sooner. Bettina Wagner, DVM, PhD, associate professor of immunology at the university’s veterinary school, described a new test she and her colleagues developed. She presented the testing protocol at the 2012 American Association of Equine Practitioners’ (AAEP) Convention, held Dec. 1-5 in Anaheim, Calif.

In North America, Ixodes ticks are responsible for transmitting B. burgdorferi to susceptible horses, which become incidental, dead-end hosts. Possible clinical signs range from chronic weight loss, low-grade fever, sporadic or shifting leg lameness, muscle tenderness, and arthritis to behavioral changes, neurologic signs, poor performance, and skin hypersensitivity, to name a few...

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