The International Collating Center, Newmarket, England, and other sources reported the following equine disease outbreaks for the first quarter* of 2013.

Reports of contagious equine metritis (CEM) were received from Germany, Ireland, and the United States. Three stallions and one mare, all non-Thoroughbreds, were confirmed positive for Taylorella equigenitalis in Germany. Ireland diagnosed CEM in a non-Thoroughbred stallion, which has since been successfully treated. Three recently imported Dutch Warmblood mares were cultured positive for T. equigenitalis in post-entry quarantine in Kentucky. California reported detection of the organism in two mares and two stallions, all non-Thoroughbreds, none of them recently imported. One of the mares had been bred to one of the positive stallions in 2012. The original source of infection for this outbreak is still undetermined.

Strangles was reported in France (two outbreaks), Ireland, Sweden (endemic) and the United States (outbreaks in Kentucky, Maine, Ohio, and South Carolina).

Equine influenza was only recorded in the United States, with outbreaks confirmed in Florida, Ohio, and Oregon