The International Collating Center, Newmarket, United Kingdom, and other sources reported the following disease outbreaks in the second quarter* of 2011.

Contagious equine metritis (CEM) was reported from Germany, South Africa, and Sweden. The causal agent of CEM was detected in one mare in Germany from embryo flush fluid. The mare was inseminated with semen from a carrier stallion imported previously into South Africa. Sweden reported one case in a Trotter mare inseminated with semen from an imported stallion.

Italy reported outbreaks of dourine (Trypanosoma equiperdum) on several premises. The occurrence was linked to the importation of a mare from Holland in September 2010. Mild signs of dourine were described in 10 horses on five premises; two horses were euthanized. Two stallions were confirmed serologically positive. Six more serologically positive cases on another premises near Naples were linked to the index premises.

A single case of equine coital exanthema (equine herpesvirus-3) was reported from the U.K