horse reaction to west nile vaccine

In the meantime, we’ve distilled the topic down into some basic do’s and don’ts to make sure you’re providing the disease protection your horse needs. This is another mosquito-borne virus with fluctuating annual case numbers depending on weather (and resulting mosquito populations) and vaccination vigilance. He has 3 fabulous smooth gaits. Botulism is a potentially fatal neurologic disease caused by toxins the bacterium Clostridium botulinum produces. What happens if they miss a round of vaccines? There were no ill effects demonstrated in the mares, their pregnancies or their subsequent foals. He started putting notices out on discussion groups on the Internet to see if anyone else had experienced such problems, and he said that he’s found “many other people” who have experienced problems in their herds. Allegations that the West Nile virus vaccine might have caused abortions and deformed foals were made in a May 30 Denver Post article. Mare owners calling themselves the “Lost Foals Group” claim the vaccine has caused up to 1,200 abortions and nearly 300 deformed or dummy foals. California’s 13th Equine WNV Case Confirmed, Kissing Spines Samples Sought for Genetic Study, Northeast Association of Equine Practitioners Symposium 2019, International Society for Equitation Science 2019, Podotrochlosis: ‘Navicular’ is No Longer the End of the Road for Horses, Core Vaccination: Protecting Horses From 5 Deadly Diseases. Davis recommends building immunity for these horses, especially those living at boarding facilities, since they can still be exposed to pathogens when other horses boarded there travel to and from events. She grew up riding horses on her family’s small farm and is currently retraining her OTTB, Bess, to be a dressage horse. This website uses cookies to improve your experience. DO consider risk-based vaccines such as those against EIV and EHV-1/4 for your performance horse if you plan to show or travel to and from equestrian venues. Stay up-to-date on the latest news about your horse's health with FREE newsletters from TheHorse.com. • The injection technique may have caused some minor injury. “If a vaccine is not stored or handled properly, it could have a negative impact on the efficacy and safety,” says Schmid. After completing further field studies, the vaccine was granted a full license in early 2003 after efficacy was shown (see articles #4277, #3903). Any mare, whether pregnant or not, can have a reaction to any vaccine, but widespread pregnancy loss just has not been one of them that I can find. • The vaccine may not have been stored properly. Stay on top of the most recent Horse Health news with, We have an "AMAZING Lineup" of exciting and available Thoroughbreds for you to meet. If you continue to use the site, we'll assume you're okay with this. Designed by Elegant Themes | Powered by WordPress. © 2020 by Cruz Bay Publishing, Inc., an Active Interest Media company. But we’ll try to also time it so that if we have a pregnant mare, we’ll vaccinate her within 30 days of foaling. Of those, the results have been inconclusive. However, in pre-release safety trials, [32] of 649 horses were pregnant mares which were closely monitored following vaccination. ACVIM, professor and head of the department of clinical sciences at Kansas State University’s College of Veterinary Medicine, in Manhattan. During the tests for safety, 649 horses in five states were tested. How to assess your senior horse’s quality of life and know when it’s time to let go. Horse owners are urged to discuss any concerns or problems with the WNV vaccine with their veterinarians, who will report problems to the proper authorities. Horses that consume round bales or fermented feeds such as haylage or silage are generally considered to be at higher risk of contracting botulism. “In general conversation, there has been no discussion whatsoever of this vaccine causing any problems at all, much less abortions.”. Severe reactions at sites of injection can be particularly troublesome, requiring prolonged treatment and convalescence. Horses under the age of 5 or over 15 are more susceptible to the disease and should be vaccinated more frequently if your veterinarian recommends it. DO consider risk-based vaccinations for your retired and nonperformance horses. DO have your horse vaccinated when his heart and respiratory rates and temperature are normal. in Journalism and Equestrian Studies from Averett College in Danville, Virginia. “I want the whole world to know that there’s a problem, and I am out there trying to get the word out and that’s what our group is about,” said Koons. Slideshow | Horse Time 2020 Contest: Editors’ Picks, Infographic | Inside the Equine Navicular Apparatus. ACVIM, assistant professor of large animal veterinary medicine at the University of Florida, has been researching WNV clinical infection since the virus first hit Florida in 2001. These types of infections are often minor, and the swelling is a sign that the immune system is cleaning it up appropriately. Stay up-to-date on the latest news about your horse's health with FREE newsletters from TheHorse.com. After the initial vaccine series annual or semiannual boosters keep horses protected from disease. She’s widely recognized as one of the clinicians most experienced with WNV in the country. According to Koons, after prodding from the Lost Foals Group, Fort Dodge recently changed their FAQ list on their web site to reflect the concerns that people have been expressing: “Currently, the West Nile virus vaccine does not carry a claim for vaccination of pregnant mares. Some injection reactions do require veterinary care. Work with your vet to develop a vaccination program individualized to each horse on your property. DON’T forget to vaccinate your performance horse for EIV semiannually, especially if he’s regularly exposed to large groups of horses off the farm. Exercise gets the blood pumping, blood circulates rapidly through the muscle (up to 30 times more quickly than in a resting horse), and the vaccine … However, top veterinarians dispute those allegations based on their experiences. My suspicion with the problem that is reported in the Denver paper is that the vaccine is incidental to the abortions and not related to it.”. He asserted that the mares show residual problems after he found they weren’t in foal, and he has been unable to rebreed them. A veterinary expert explains what causes adverse vaccine reactions and what to look out for in your horse. Tom Riddle, DVM, of Rood and Riddle Equine Hospital in Lexington, Ky., said, “I can tell you that my practice has vaccinated thousands of mares with the West Nile virus (WNV) vaccine and we have seen no relationship between the vaccine and abortions.

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