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WEST
NILE VIRUS: We get a lot of questions regarding West Nile Virus and its potential danger to llamas and alpacas. Can animals become infected with West Nile Virus. The answer is yes. "Other animals have also been found to be infected and have died from WNV. During the year 2000, reports from the Eastern states found WNV infecting 58 horses, two bats, a domestic rabbit, a skunk, a cat, a gray squirrel, and a chipmunk." Having said that, ruminant species, including llamas and alpacas, have not been diagnosed with WNV. Llamas and alpacas fall into that category and do not seem to be susceptible to WNV infection. At this time, I do not see WNV as a threat to our llamas and alpacas. Thus, I am not vaccinating for the disease. We have no way to know if the WNV vaccine would have a damaging effect or protective effect in llamas and alpacas because the vaccine was not developed for use in these two species. Do you want to know more? People and West Nile Virus. What should
I know? See: WEST
NILE VIRUS FOR IMMEDIATE RELEASE
The owner of the horse first noticed the animal had rear leg lameness on July 19, according to state Agriculture Director Fred L. Dailey. After the horse's condition deteriorated, the owner sought veterinary intervention. The attending veterinarian, Paul Masters, D.V.M., of Orville, collected blood samples and submitted them to the Ohio Department of Agriculture's Animal Disease Diagnostic Laboratory, which forwarded them on July 29 to the National Veterinary Services Laboratory in Ames, Iowa, for testing. The horse, which had not been vaccinated, has been euthanized. Although this was a clinical case in which the owner observed sickness in the animal prompting a diagnostic blood test, the state agriculture department routinely assists in the testing of horses and birds as part of the state's efforts to monitor and prevent the spread of West Nile Virus. Last July, a blue jay was the first positive indicator that West Nile virus had officially arrived in Ohio. Horses are "sentinels" of the disease rather than carriers; that is, mosquitoes do not pick up the virus from infected horses. Horse owners should watch for signs of infection by the virus in their animals and should consult a veterinarian if those signs are present. For example, infected horses might experience loss of appetite, fever, weakness, paralysis of hind limbs, impaired vision, loss of coordination, aimless wandering, convulsions, inability to swallow, circling, hyper-excitability, or coma. The disease can be fatal in horses. Owners should consult with their veterinarians to consider vaccinating horses against the virus. Public health authorities continue disease and vector surveillance activities, and the public should adopt effective safeguards against the virus, including eliminating conditions in which mosquitoes can breed. Horse owners should take other preventive steps to protect their animals from mosquitoes, including:
Primarily a wild-bird disease, WNV is a mosquito-borne virus, which generally causes mild symptoms that mimic the flu in humans. In rare instances, however, WNV can cause encephalitis (inflammation of the brain) or meningitis (inflammation of the lining of the brain and spinal cord) in humans. This happens in less than 1 percent of people bitten by an infected mosquito. Those over age 50 and those with compromised immune systems are most susceptible to the serious complications related to the virus. Ohio Department of Health Director J. Nick Baird, M.D., is urging all Ohioans to protect themselves and their loved ones from mosquito bites and to remove standing water from their property. "Because WNV is entrenched in Ohio, we all need to follow some simple steps to help protect ourselves from mosquito bites," Baird said. "By following this advice, we can minimize West Nile's impact on Ohio's health." Personal Prevention Measures
The state operates two toll-free telephone information lines to handle questions from the public about West Nile virus. The Ohio Department of Agriculture has a toll-free line for animal health questions, 800-300-9755, staffed 8 a.m. to 5 p.m. weekdays by the department's Division of Animal Industry staff. Questions regarding human health should be directed to the Ohio Department of Health's toll-free line, 866-634-2968, staffed 8 a.m. to 4:30 p.m weekdays by state health department personnel. The Ohio Department of Agriculture and Ohio Department of Health are members of the Ohio West Nile Virus Workgroup. Other members are the Ohio Department of Natural Resources, The Ohio State University, the Ohio Environmental Protection Agency, Association of Ohio Health Commissioners, Ohio Mosquito Control Association, Ohio Environmental Health Association, and the U.S. Department of Agriculture. Media contact for animal health issues: Mark Anthony, Ohio Department of Agriculture, (614) 752-9817 Media contact for human health issues: Office of Public Affairs, Ohio Department of Health, (614) 644-8562 Websites for more information:
David E Anderson, DVM, MS |