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

Contagious equine metritis (Taylorella equigenitalis) was reported from Germany in one mare and one stallion on separate premises.

Australia, France, Ireland, Sweden, the United Kingdom, and the United States reported outbreaks of strangles. Several outbreaks were diagnosed in New South Wales, Australia. France and Ireland confirmed seven outbreaks each, either in Thoroughbreds or Standardbreds. Sweden and the United States reported that strangles was endemic, with several outbreaks diagnosed. Two outbreaks were recorded in the UK, one involving a non-Thoroughbred and the other a gelding with a concurrent infection of equine herpesvirus (EHV)-1.

Equine influenza was reported by Germany, Sweden, and the UK. A single case in a Thoroughbred was confirmed in Germany. Outbreaks involving Standardbred trotters and a pony were recorded on separate premises in Sweden, one of which was a racetrack. The UK confirmed at least eight outbreaks of equine influenza in as many counties, the vast majority involving unvaccinated horses. The clinical severity of disease varied significantly among affected horses