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Equine Potomavac 10 ds Vial

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Equine Potomavac® contains inactivated Ehrlichia risticii in the form of a liquid suspension. It works to prevent equine monocytic ehrlichiosis (Potomac Horse Fever) associated with Ehrlichia risticii. See Allivet's Horse Vaccine Chart to find out which vaccine is right for your horse.

HORSE POTOMAC FEVER VACCINE

Potomac horse fever (PHF) is a disease of equids best known for its gastrointestinal signs such as enteritis and diarrhea. This disease is caused by Neorickettsia risticii, an organism that lives inside several different cells of the equine body. This disease has been referred to in the past as equine monocytic ehrlichiosis, or equine ehrlichial colitis. The first prominent sign of PHF often observed by owners is a decrease in feed intake. In fact, some horses may not initially show any other clinical signs except not eating.
 

Potomac horse fever is caused by Neorickettsia risticii, an organism member of the Erlichiaea family. According to the isolates obtained from clinical cases, there is diversity in the organism and each isolate has a different pattern of antigenic proteins. Therefore, Potomac horse fever is caused by more than one strain ofNeorickettsia risticci. Cases of Potomac horse fever have a seasonal presentation with the highest number of cases with clinical signs in July, August, and September.

 

Potomac horse fever is found throughout in North America and has been reported in most regions of the United States and Canada. Studies have shown that 16 - 33 percent of horses with no history of having had the disease have evidence of having been exposed to N. risticii.  N. risticii can cause abortions, and it is related to placentitis and retained placenta in most cases. The aborted fetus will show signs of the infection as well. Direct transmission from horse to horse does not occur.


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Equine Potomavac 10 ds Vial

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