Contagious equine metritis (CEM) is a venereal disease of horses caused by the bacteria Taylorella equigenitalis. It is spread during breeding or through. Importance. Contagious equine metritis (CEM) is a highly communicable venereal disease of horses, caused by the bacterium Taylorella. Information, factsheets, photos, resources, and vaccines for Contagious Equine Metritis.

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Canada’s emergency response strategy to an outbreak of CEM would be to:.

Contagious equine metritis

Most mares recover spontaneously, although many become carriers. The severity of disease in mares varies. However, metriti infected stallion remains capable of transmitting disease. Contagious equine metritis in the USA. There are no outward signs of infection; however, the mare remains capable of transmitting infection.

The disease can also be transmitted via artificial insemination.

Is CEM a risk to human health? Although most contagious equine metritis outbreaks involved Thoroughbreds, infection in other breeds has also occurred. Canada’s emergency response strategy to an outbreak of CEM would be to: After drying, nitrofurazone cream is applied to these areas.

Treatment of stallions is successful. Successful transmission of CEM to the donkey. If positive, they only indicate that the mare has had the disease in the past, and do not indicate whether the mare is a carrier now. The disease has been contagoous in Europe, Australia and the United States.


Stallions do not usually show any clinical signs of infection. Views Read Edit View history. Sample collection and laboratory methods for the diagnosis of eqine equine metritis are described. This article has been cited by other articles in PMC. There are cojtagious states of infection: Responses of mares to rechallenge with the organism of contagious equine metritis The disease was first reported in on horse breeding farms in Englandwhen an unusually high proportion of mares were not becoming pregnant.

Serological response in mares affected by contagious equine metritis Genital metriits in mares. While one course of treatment may be sufficient in a stallion, it may take several months before the CEM organism can be successfully treated in a mare.

In mares, this includes the endometriumcervixclitoral fossa and sinuses. Contagious equine metritis CEM is a transmissible venereal disease in horses, caused by the bacterium Taylorella equigenitalis. Where is CEM found? Once the organism has equune eliminated, the horse may be used for breeding again.

How is CEM treated? A passive haemagglutination test for the detection of antibodies to the contagious equine metritis organism. Infected mares are usually infertile during the acute illness. Contagious equine metritis is characterized by an endometritis and metritid and infected mares show no signs of systemic infection. The disease is primarily spread directly during natural breeding.

There is no human health risk associated with CEM.

Contagious Equine Metritis: A Review

Haemophilus equigenitalis has been proposed as the species name of the Gram-negative, microaerophilic coccobacillus. Taylorella equigenitalis is susceptible to most antibiotics, although the carrier state in mares is difficult to eliminate.


Retrieved from ” https: This disease only affects horses, however all breeds are susceptible. Survival properties of the causal agent of contagious equine metritis Susceptibility of laboratory animals to infection with Haemophilus equigenitalis.

It is relatively easy to eliminate the carrier state in stallions using local disinfectant. Laboratory metrjtis is needed to confirm the diagnosis. After entry into Canada, both stallions and mares are quarantined, where they undergo further extensive testing. Additional information Animal Health Offices. By using this site, you agree to the Terms of Use and Privacy Policy. The first indication of the carrier state is lack of pregnancy in the mares covered by the stallion.

In most cases, CEM can be successfully treated with disinfectants and antibiotics. Journal of Animal Science. In mares, initial exposure to the disease usually confagious in a large amount of vaginal discharge 12 to 14 days following natural breeding with an infected stallion. Infected mares respond clinically to the topical and parenteral administration of antibacterial drugs. The disease can cause infertility and, on rare occasions, abortion.

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