The International Collating Center, Newmarket, United Kingdom (UK), and other sources reported the following disease outbreaks for the fourth quarter* of 2011.

One case of contagious equine metritis (CEM, Taylorella equigenitalis) was reported in a non- Thoroughbred stallion in Germany.

A new outbreak of dourine was reported in the Bari province of Italy involving one mare; the total number of outbreaks confirmed in Italy in 2011 was seven.

Equine influenza was reported from France (four outbreaks), Germany (single case), the UK (five outbreaks), the United States (two outbreaks), and Sweden. Sweden diagnosed the disease in nine of 10 trotters that were part of a shipment transported to six stables in northern Sweden. Influenza spread to all horses on those premises and to five additional properties. The disease affected 60 trotters on the 11 premises in Sweden