west nile virus, vaccination, south dakota, horses
Veterinary and Biomedical Sciences
Because West Nile Virus (WNV) has appeared statewide in South Dakota, horses in all counties are at risk of exposure. History indicates that WNV will continue to be present for years to come. Several commercial WNV vaccines are available for horses. Field observation suggests the vaccines are effective, and experiments indicate proper vaccination may prevent 94% or more of WNV cases. Few adverse reactions have been reported. Epidemiologic data suggests that vaccinated horses are 3 to 16 times less likely to die from WNV infections than are non-vaccinated horses.
Daly, Russ, "What you need to know before vaccinating your horses for West Nile Virus" (2006). SDSU Extension Extra Archives. 385.
Updated May 2006