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What is EVA/CEM?

April 26, 2017cem Eva

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What is EVA/CEM?

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Contagious Equine Metritis (CEM) is caused by the bacteria known as Taylorella equigenitalis that is transmitted as a venereal disease. Stallions are asymptomatic carriers and can be diagnosed via culture of the urethral fossa, urethra, or sheath. Infected mares can be diagnosed by culture of the clitoral fossa. Equine viral arteritis (EVA) is caused by the equine arteritis virus with an incubation period of 28 days. Reproductive concerns include abortion in pregnant mares, death to young foals and breeding stallion’s becoming permanent carriers. The following links and articles provide EquiGen’s clients with technical information about EVA and CEM issues within the United States. USDA Publication – EVA, Equine Viral Arteritis and the U.S. Horse Industry www.aphis.usda.gov/vs/nahss/equine/eva/ CEM Outbreak: American Horse Council sends letter to U.S. Agriculture Secretary about restrictions The American Horse Council expressed concern over the current CEM outbreak in a letter to the U.