The World Organization for Animal Health (OIE ) reports that a new case of Contagious Equine Metritis (CEM) was confirmed in the United States (U.S.), on July 21, 2011.
The CEM case was detected in a four- year old stallion in Arizona and was identified during testing for semen export. The United States Department of Agriculture (USDA) is still investigating the source of the outbreak as of this date.
CEM is a venereal disease of horses and has not been detected in Canada.