Venereal Disease
Article
Equine Reproductive Tract Bacteria Studied
One study showed bacteria on stallions' external genitalia do not appear to affect stallion or mare fertility.
Photo by Anne M. Eberhardt
Article
Taylorella Genome Sequence Furthers CEM Comprehension
The genome of Taylorella equigenitalis, the causative agent of contagious equine metritis, has been sequenced.
Photo by Anne M. Eberhardt
Article
CEM: An Insidious and Potentially Pervasive Disease
Contagious equine metritis (CEM) gives rise to considerable concern among horse breeders in many countries.
Photo by Anne M. Eberhardt
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 <SPAN style="FONT-FAMILY: 'Calibri','sans-serif'; FONT-SIZE:... 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
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