Contagious Equine Metritis (CEM)

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CEM Confirmed in Texas Stallion

January 15, 2009

Laboratory tests have confirmed that a stallion in Texas is infected with contagious equine metritis (CEM), a highly contagious venereal disease of horses, the Texas Animal Health Commission (TAHC) reported today.

The infected... Read More

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CEM Exposure: Idaho Investigates 4 Mares

January 14, 2009

Idaho is among 38 states tracing Quarter Horse and Paint horses that might have been exposed to contagious equine metritis (CEM).

Bill Barton, DVM, Idaho state veterinarian,... Read More

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Wisconsin Friesian Stallion Positive for CEM

January 14, 2009

A stallion quarantined in Outagamie County, Wis., has tested positive for contagious equine metritis (CEM), a contagious but treatable reproductive disease of horses.... Read More

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Contagious Equine Metritis: Culture and Diagnosis

January 13, 2009

One of the most difficult problems in diagnosing contagious equine metritis (CEM) is isolating the organism from heavily contaminated sites in the stallion and mare. CEM is caused by Taylorella equigenitalis, a Gram-negative bacterium,... Read More

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CEM Test, Treatment Protocol Videos Available

January 13, 2009

With more than 350 horses involved in the investigation into contagious equine metritis (CEM), veterinarians in 38 states are being asked to swab and treat horses for a disease this country hasn't seen in decades, and then only on a limited basi... Read More

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Iowa Testing Horses for CEM

January 12, 2009

Iowa is one of more than 30 states testing horses that might have been exposed to contagious equine metritis (CEM) following the discovery of infected Quarter Horse and Paint... Read More

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CEM: 3 Pennsylvania Mares Exposed

January 09, 2009

Three mares in Pennsylvania are under quarantine after officials determined they had been exposed to contagious equine metritis (CEM).

"These mares are in varying stages of... Read More

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Wyoming Warns Horse Owners About CEM

January 09, 2009

Although the state is not involved with the investigation into contagious equine metritis (CEM), the Wyoming State Veterinarian is advising horse breeders and veterinarians to be aware of the equine reproductive disease. The... Read More

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Montana Mare Quarantined for CEM

January 08, 2009

A Quarter Horse mare in Montana has been quarantined after exposure to contagious equine metritis (CEM), a highly contagious venereal disease of horses that can cause temporary... Read More

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CEM Exposure: 17 Wisconsin Horses Quarantined

January 08, 2009

Seventeen horses on 11 different farms in Wisconsin have been quarantined and will be tested because they have been exposed to a highly contagious disease that can cause reproductive problems in mares.

However, Wisconsin State Veterinarian... Read More

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Colorado Mare Tested for CEM

January 08, 2009

One Colorado mare has been identified as having been in contact with a stallion infected with contagious equine metritis (CEM). A hold order has been placed on the premises until test... Read More

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Six Kansas Mares Exposed to CEM

January 08, 2009

Six mares in south central Kansas are now included in the investigation into contagious equine metritis (CEM) that spans 28 states, according to a report by The Hutchinson... Read More

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Prevent CEM, Other Infectious Diseases Through Strict Hygiene

January 07, 2009

Strict hygiene guidelines should be followed whenever handling breeding mares or stallions to prevent reproductive infectious diseases, including contagious equine metritis (CEM).

CEM is spread between horses primarily by breeding, either b... Read More

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CEM Exposure: Virginia Farms Quarantined

January 05, 2009

Richard L. Wilkes, DVM, state veterinarian with the Virginia Department of Agriculture and Consumer Services (VDACS), Dec. 23, 2008, placed full or partial quarantines on farms in Floyd and Goochland counties. Mares at these farms have had... Read More

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Texas Testing 15 Horses Linked to CEM

January 05, 2009

Texas is among nearly 30 states tracing and testing horses that might have been exposed to contagious equine metritis (CEM), a highly contagious disease that can be transmitted during breeding or artificial insemination. CEM can cause temporary... Read More

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CEM Exposure: Oklahoma Mare Quarantined

January 05, 2009

Oklahoma agriculture officials are warning horse breeders of contagious equine metritis (CEM), which can result in infertility in mares. One Oklahoma mare has been identified as... Read More

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Three Indiana Stallions Positive for CEM

January 02, 2009

Three Paint stallions that stood at DeGraff Stables/Liberty Farm Equine Reproduction Center LLC in Midway, Ky., during the 2008 breeding season have now tested positive for contagious equine metritis (CEM), according to a statement released by... Read More

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CEM Exposure: North Dakota Mare Quarantined

January 02, 2009

A North Dakota mare has been quarantined after state animal health officials learned it had been exposed to contagious equine metritis (CEM), a highly contagious venereal disease of horses.

"The animal and all other horses on the premises... Read More

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CEM Investigation by the Numbers

January 02, 2009

The USDA's Animal and Plant Health Inspection Service (APHIS) is posting updates on the ongoing investigation into contagious equine metritis (CEM) cases... Read More

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Semen From CEM-Positive Kentucky Stallion Was Shipped To Canada

December 26, 2008

The Canadian Food Inspection Agency (CFIA) issued a warning late Friday, Dec. 26, that semen from one of the four Quarter Horses confirmed positive for contagious equine metritis (CEM) had been shipped to farms in Ontario and Alberta. It had... Read More

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Fourth Stallion has CEM; Kentucky Farm and State Working Together

December 23, 2008

A fourth stallion that formerly stood at a Central Kentucky breeding facility, now identified as DeGraff Stables/Liberty Farm Equine Reproduction Center LLC, has tested positive for contagious equine metritis (CEM). Officials had considered this... Read More

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University of Kentucky Assists in CEM Investigation

December 22, 2008

A 16-year-old Quarter Horse stallion residing in Kentucky tested positive for the causal agent of contagious equine metritis (CEM), a bacterium Taylorella equigenitalis, on Dec. 10 (Read More