Venereal Disease

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Article

CEM: An Insidious and Potentially Pervasive Disease

October 13, 2012

Contagious equine metritis (CEM) gives rise to considerable concern among horse breeders in many countries.... Read More

Article

Italy Responds to Equine Dourine Outbreak

July 02, 2012

In May 2011, a stallion undergoing routine testing in Italy for stud purposes tested positive for dourine.... Read More

Article

Equine Reproductive Tract Bacteria Studied

June 16, 2012

One study showed bacteria on stallions' external genitalia do not appear to affect stallion or mare fertility.... Read More

Article

Taylorella Genome Sequence Furthers CEM Comprehension

April 15, 2012

The genome of Taylorella equigenitalis, the causative agent of contagious equine metritis, has been sequenced.... Read More

Article

Arizona Stallion Reported Positive for CEM

July 26, 2011

A stallion in Arizona has tested positive for contagious equine metrititis (CEM), a sexually transmitted ... ... Read More

Article

French EVA Outbreak Stabilizing

July 12, 2011

A stallion, several mares, and a foal have tested positive for equine viral arteritis at two French Lusitano... Read More

Article

Italian Dourine Outbreak Continues

June 26, 2011

World animal health officials are monitoring the spread of an outbreak of the equine venereal disease dourine ... Read More

Article

Animal Health Officials Monitoring Dourine in Italy

June 15, 2011

World animal health officials are investigating two confirmed cases of the equine venereal disease dourine ... Read More

Article

Contagious Equine Metritis Detected in South Africa

May 14, 2011

Two cases of contagious equine metritis (CEM) have been confirmed in the South African province of Gauteng, ... Read More

Article

Vaccinating Pregnant Mares for Equine Viral Arteritis

April 24, 2011

In the event of an equine viral arteritis (EVA) outbreak, is it safe to vaccinate your pregnant mare so she develops the immunity she needs to prevent infection and resulting abortion? The results of a recent collaborative study completed by ... Read More

Article

New USDA Rule for Horses Imported from CEM-Affected Countries

March 28, 2011

The USDA's Animal and Plant Health Inspection Service (APHIS) is amending its regulations regarding the importation of horses from countries affected with contagious equine metritis (CEM). "The additional testing added to our existing import ... Read More

Article

EVA Confirmed in Great Britain

December 10, 2010

A breeding stallion in West Sussex, England, has tested positive for equine viral arteritis (EVA), according to a report filed by the British equestrian magazine Horse & Hound. The confirmation of the EVA was announced Dec. 8.... Read More

Article

Possible Deadline for CEM Lawsuits

December 03, 2010

Horse owners whose animals were affected by a contagious equine metritis (CEM) outbreak during the 2009 breeding season might have the option of filing a lawsuit for damages against the USDA's Animal and Plant Health Inspection Service (APHIS).... Read More

Article

10 Steps for Successful Artificial Insemination for Horses

December 01, 2010

Artificial insemination (AI) is today's breeding standard for many types of horses. To find out how to make our readers' artificial insemination programs more successful, The Horse went to two recognized experts in equine artificial insemination... Read More

Article

Endometritis in Horses Explained

November 01, 2010

Often, the only clinical sign of endometritis is not what you do see but what you don't see: a pregnancy. Endometritis is a major cause of female infertility, affecting up to 15% of broodmares. But because it frequently lacks clear clinical signs... Read More

Article

CEM: Lower-Cost Stallion Testing Continues

May 20, 2010

In an effort to show that Contagious Equine Metritis (CEM) does not exist or is at very low levels in the US equine horse population, the USDA is offering lower-cost testing to owners of active breeding stallions through August. It is part of a... Read More

Article

Sexually Transmitted Disease

November 01, 2009

Many kinds of sexually transmitted diseases can affect horses; protect your stallions and mares from the most common offenders.

The horse's reproductive system is not perfect and often throws up roadblocks when... Read More

Article

CEM Investigation Appears to be Wrapping Up

September 24, 2009

Barring any big surprises, the investigation into contagious equine metritis (CEM) in the United States might be Read More

Article

CEM Study: Antibiotic-Treated Semen Can Reduce Transmission Risk

July 19, 2009

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 agen... Read More

Article

CEM Investigation Finds 21 Positive Stallions

June 02, 2009

The ongoing investigation into venereal disease contagious equine metritis (CEM) has now located 21 stallions--one of which is now a gelding--positive for causative organism... Read More

Article

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

May 20, 2009

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... Read More

Article

Where Not to Pinch Pennies

March 01, 2009

In tough economic times, many horse owners look for ways to cut costs. Too often this is done by cutting back on veterinary care. However, it is important to keep in mind that what may save us a couple of dollars now might end up costing us much... Read More

Article

California Mare Positive for CEM

February 25, 2009

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... Read More

Article

Questions to Ask Before Breeding a Mare

February 02, 2009

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... Read More

Article

California Among 39 States Testing Horses for CEM

January 17, 2009

California is among 39 states testing horses that might have been exposed to a highly contagious venereal disease of horses, contagious equine metritis (CEM). 

California Department of Food and Agriculture veterinarians have... Read More