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What Does This Vaccination Do?
Equine Herpes Virus (Rhinopneumonitis)
Given: Spring & Fall
What:Viral infection encompassing respiratory, abortion, and neurological syndromes that are associated with any age; respiratory form most severe in young horses. Vaccine does not protect against the neurological form and is not very effective against the respiratory form.
When: Pregnant mares should receive the killed form (Pneumabort) at 5,7,9 months of pregnancy to prevent abortion. Horses who live in a closed herd and do not travel may not require this vaccine. Horses who reside at boarding barns, show barns or who travel should recieve this vaccine twice per year. |
Equine Influenza Virus (Flu)
Given: Spring & Fall |
What: Viral respiratory disease; often leads to bacterial complications. |
Who is effected: Horses with higher exposure (competitions/shows) are vaccinated twice a year, if given intranasal vaccine. |
Given: Spring
What:Bacterial infection via soil or wound contamination from manure. Even with treatment, a high mortality rate. |
When: Vaccinate early and give booster when wound occurs if the horse hasn't been vaccinated in the last 6 months. |
Western Equine (WEE) Encephalomyelitis (Sleeping Sickness)
Given: Spring+ travel booster
What: Viral disease of humans & horses; birds are virus reservoirs. Transmission via mosquitoes. |
When: Annual vaccine. Booster during outbreaks or for horses who travel to southern US in winter. |
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Eastern Equine (EEE) Encephalomyelitis (Sleeping Sickness)
Given: Spring + travel booster
What: Viral disease of humans & horses. Virus reservoirs are birds & rodents; mosquito transmission. Usually fatal in less than 3 days. |
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When: Annual vaccine. Needed during outbreaks or for horses traveling to southern US in the winter.
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Potomac Horse Fever (PHF)
Given: Spring +/- Fall
What: Bacterial disease affecting intestinal tract. Suspected transmission by snails, mayflies or other means. May be fatal. Signs include fever, depression, colic, diarrhea and laminitis.
When: Annual vaccine after May 14th . If before May 14th , then give 2nd booster in August.
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West Nile Virus
Given:Every 4 months during mosquito season |
What: Mosquito-borne virus. Signs include somnolence, fever, muscle twitching & depression. 30% mortality rate.
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When: Vaccinate twice yearly in spring and summer. Boosters for horses traveling to southern US in the winter. |
Rabies
Given: Spring or Fall |
What: Severe, fatal, central nervous system viral disease spread by a bite of infected animals. NO CURE. Reservoirs are wild animals. (i.e. skunks, bats, raccoons, etc.) |
When: Annual vaccination due to endemic status, public health hazard and legal liability of owners and barn managers. Unvaccinated, infected animals are serious public health threats.
Streptococcus Equi (Strangles)
What: Bacterial upper respiratory disease; most severe in young horses; often occurs in isolated areas. Horses can get it more than once. Very contagious.
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When: Vaccinate twice yearly depending on exposure. Intranasal vaccine.
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