A Virus Shakes Up Horse Shows, and Stables

Biosecurity is important at all times. We do not currently have a vaccine that has proven efficacy to protect horses from EHV-1 neurologic disease (myelitis). No new clinical developments or significant events over the weekend. The most important principles of disease control are especially relevant for the present outbreak of Equine Herpes Virus (EHV-1). Kentucky Oaks (gr. Bushmich said that horse owners should want shows to require health certificates for horses and that as a precaution, horses should be separated from those from other stables. was confirmed by France (one case of uveitis) and the US (two cases of abortion).

If the animal has received drugs or medications for which the withdrawal period has not yet elapsed, this must be documented on the form. Arthropod vectors do not seem to exist. Key to the outreach effort was a cooperative project with Rutgers/Cook College and the state’s 4-H program. Winter Honey Bee Death Loss — The New Jersey Beekeepers Association winter death loss survey on 2,000 colonies showed that beekeepers that did not treat their colonies to reduce the Varroa mite load experienced a 65 percent death loss. Though Bromont is still in the running, Lexington, Ky., which hosted the 2010 WEG, and Wellington also are candidates. Germany reported nine cases of contagious equine metritis on eight premises, the majority in stallions and horses of the Icelandic breed. VEE viruses are endemic in South and Central America and Trinidad.

Germany recorded outbreaks involving 19 non-Thoroughbreds on four premises, one of which involved two stallions and 14 mares on an Icelandic horse farm. The neurologic form of EHV is a reportable disease in New Jersey. Rob MacKay, from the university. If an owner has a horse that is exhibiting neurologic signs or suspects Equine Herpes, they are directed to call their veterinarian immediately. Weakness, malaise, anorexia, lymphadenopathy, nausea and vomiting may also be seen. It can also make those who are exposed more vulnerable to HIV infections. Strangles was reported by Australia (24 outbreaks involving 48 cases), France (11 outbreaks), Germany (single cases on three premises), Ireland (20 cases involving three provinces), Switzerland (one outbreak), the United Arab Emirates (eight cases on two premises), and the United States (where the disease is endemic; 17 outbreaks in seven states).

Signs of neurological disease usually follow. One outbreak of EHV-1 myeloencephalopathy involving two horses was confirmed in Idaho, in the US. Unvaccinated horses exposed to the EEE virus by infected mosquitos will develop neurological signs of disease. The cost of dead poultry stands at $191 million; the total economic damage of the outbreak in Iowa alone is estimated at $957 million. The team also determined that fecal polymerase chain reaction (or PCR) testing appears to be an effective method by which to diagnose ECoV infection. WEE, EEE (in low-risk areas) and VEE:  From nonvaccinated mare:  First dose:  3 to 4 months. captured the Feb.

If an owner has a horse that is exhibiting neurologic signs or suspects Equine Herpes, they are directed to call their veterinarian immediately. Several cases of equine coital exanthema (equine herpesvirus-3) were reported from Kentucky. Dr. Horses are highly susceptible to the virus, which causes the neurologic disease West Nile encephalitis. The USA reported numerous cases/outbreaks of the disease in several states. Outbreaks of strangles were reported by France (12 premises), Germany (four premises), Switzerland (one premises), and the US (27 premises). Post mortem lesions include, but are not limited to, splenic infarcts, hemorrhages in the kidney, bladder, lymph nodes, larynx and other lesions typically associated with septicemia.

12, about 40 horses were still diagnosed with EHV-1. Unlike the smaller shipping companies, Brookledge Horse Transportation has offices located in Oley, PA, Lexington, KY, and Ocala, FL. It is ubiquitous and abundant in the soil, and will survive there for many years, resulting in an ever-present risk of exposure. The blisters are most likely to affect the mouth, the tongue and around the nose/muzzle. On February 20th, the Division of Animal Industry was notified that a horse participating at the show had been referred to the University of Florida, College of Veterinary Medicine, after exhibiting clinical neurological signs. Duration of hospitalization ranged from < 1 to 12 days (mean 5 days, median 5.4 days). One of those horses was euthanized after he failed to respond to treatment. Sera were paired and tested for antibody to equine influenza 1 (AE1-H7N7), equine influenza 2 (AE2-H3N8), equine herpesvirus 1 and 4 (EHV1 and EHV4), and equine rhinitis A and B (ERAV and ERBV). The finding forced 20 hospitalized horses into a quarantine, which is expected to be lifted Nov. Horse owners are familiar with a Coggins test—that piece of paper required for entry into most horse shows and sales and/or for interstate horse transport. Several vaccines are commercially available but could not previously be distinguished by serologic testing from infection with EHV-1 (or the closely related EHV-4).