Contagious Equine Metritis (CEM)

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CEM Investigation: 23 Positive Stallions

A stallion in Wisconsin has become positive stallion No. 23 in an ongoing investigation into contagious equine metritis (CEM).

Wisconsin State Veterinarian Robert Ehlenfeldt, DVM, said this horse is considered part of the outbreak th

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CEM Study: Antibiotic-Treated Semen Can Reduce Transmission Risk

Researchers at the Gluck Equine Research Center will publish a study this fall on contagious equine metritis (CEM), a sexually transmitted disease in horses. Stallions are asymptomatic carriers of Taylorella equigenitalis, the causative agent of CEM, while mares may develop signs of an endometritis/cervicitis/vaginitis following exposure to an infection with this bacterium.

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International Equine Disease Report, First Quarter 2009

The International Collating Centre, Newmarket, England, and other sources reported the following disease outbreaks:

Contagious equine metritis (CEM) was confirmed on four premises in France. In December 2008, four stallions (three Quarter

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Number of U.S. Horses Exposed to CEM Hits 920

The ongoing investigation into contagious equine metritis (CEM) now includes more than 920 exposed or positive horses, according to the USDA.

The investigation began in mid-December 2008, when a Quarter Horse stallion on a Kentucky farm tested

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CEM: Stallions Cleared at Kentucky Index Farm

The Central Kentucky farm that had the first discovered case of contagious equine metritis (CEM) in the recent outbreak, which set off the investigation that now includes 680 horses nationwide, has declared the all-clear. The four formerly

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New York to Offer CEM Training Sessions for Vets

Licensed veterinarians in New York have been invited to attend training sessions regarding contagious equine metritis (CEM), sponsored by the New York State Veterinary Medical Society, Agriculture Commissioner Patrick Hooker announced March 4.

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California Mare Positive for CEM

A 12-year-old mare in California has tested positive for contagious equine metritis (CEM), a highly contagious but treatable reproductive disease of horses.

The positive mare was bred via artificial insemination using shipped semen collecte

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Third Wisconsin Stallion Positive for CEM

A third stallion in Wisconsin has tested positive for contagious equine metritis, or CEM, a treatable reproductive disease of horses, the state’s Department of Agriculture, Trade and Consumer Protection announced Jan. 30.

The National

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Questions to Ask Before Breeding a Mare

Thinking of breeding your mare this spring? The recent outbreak of contagious equine metritis (CEM, which is caused by bacterium Taylorella equigenitalis) in the United States and the previous outbreak of equine viral arteritis (EVA) have

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