International Equine Disease Report, Third Quarter 2014

International Equine Disease Report, Third Quarter 2014

DENVER (AP) – A horse that competed in the Colorado rodeo and barrel racing circuit has tested positive for a virus that can cause breathing problems and nervous system disorders for the animals. Although the insect vectors for transmission of West Nile Virus and VS in horses are different, one of the most important disease prevention practices for both diseases is insect control for both the premises and the individual animals,” said State Veterinarian, Dr. Keith Roehr. Infection with EHV-1 resulted in increased expression of TLR3 and 9 as well as inflammatory cytokines (IL-1, TNF-alpha, IFN-alpha, and IL-6) and chemokines (IL-8, MCP-1). To continue reading articles, you will need to become a subscriber or log in if you are a subscriber. To address these issues we are looking for a Diplom-Master’s student to serologically test our collection of several hundred wild and captive polar bear sera for selected pathogens representing likely sources of exposure in the wild e.g. Recent Reported Cases April 2, 2014 – The Iowa Department of Agriculture confirmed a single case of equine herpesvirus type-1 in Marion, Iowa.

International Equine Disease Report, Third Quarter 2014
Horse owners should also consult their private practicing veterinarian to determine an appropriate disease prevention plan for their horses. Eight outbreaks were reported by the United Kingdom, the vast majority involving isolated cases in nonvaccinated horses and ponies. The United States recorded two outbreaks in Ohio and one in Kentucky. Equine herpesvirus (EHV)-1 and -4 related diseases were recorded in Argentina, France, Germany, Ireland, the UK, and the United States. Respiratory disease caused by EHV-4 was confirmed in France (three outbreaks), Germany (nine horses), Ireland (nine cases involving two premises), and the United Kingdom (isolated cases on nine premises). Abortions due to EHV-1 were diagnosed in Argentina (five outbreaks), and Germany (one case). Six Minnesota horses have tested positive for EHV-1 infection (non-neuropathogenic strain).

Single cases of EHV-1 associated neurologic disease were recorded in France, Switzerland, and the United Kingdom. A few cases of EHV-2 and -5 infections were reported in the United States. However, it will be important to test both variants in carefully controlled vaccination and challenge studies in horses to determine safety, immunogenicity and protective efficacy. If you or anyone you know see any of these signs in your horses, contact your veterinarian immediately to report the disease and begin diagnostic and treatment plans. Recommendations include removing stagnant water sources, using mosquito repellents and keeping animals inside during the bugs’ feeding times, typically early in the morning and evening. Equine piroplasmosis was recorded as endemic in France, Spain, Switzerland, and the United Arab Emirates. Infected horses may display symptoms including head tilt, muscle tremors, stumbling, lack of coordination, weakness of the limbs or partial paralysis.

During the third quarter of 2014, a total of 114 cases of Eastern equine encephalomyelitis were diagnosed in the United States. Cases were recorded in 16 states with the vast majority (58) confirmed in Florida. West Nile virus encephalitis was reported by Italy (two cases caused by lineage 2 virus), Turkey (one case), and the United States where 32 states reported 66 cases. The U.S. Here, we evaluated the efficacy of the current vaccination program by investigating the EHV-1 epizootic and vaccination coverage in the training centers before and after the program was changed, along with the antibody responses in the vaccinated horses. Clinical signs were observed in 22 horses of which slightly over 50% had been vaccinated against the disease.

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