U.S. Virgin Islands (USVI) Department of Agriculture Commissioner of Agriculture Louis E. Petersen Jr., PhD, announced that import restrictions have been temporarily issued for horses coming into the territory in a May 24 press release.

“Due to a confirmed case of contagious equine metritis (CEM) diagnosed in a horse in Puerto Rico, horses from Puerto Rico or traveling through Puerto Rico will not be allowed entry into the U.S. Virgin Islands until further notice," Petersen said. "In addition, horses coming from Florida must now be tested for this disease. The USDA and Puerto Rico Department of Agriculture met with Dr. Bethany Bradford (DVM), director of veterinary services, (May 23) regarding this rare disease situation and we have jointly decided to make these necessary adjustments in the (Virgin Islands) in order to protect the horse population in the territory.”

CEM is a highly contagious venereal disease of horses caused by the bacterium Taylorella equigenitalis. The disease, which can cause infertility, can be passed through breeding or via contaminated equipment. The bacterium that causes CEM can also be transmitted indirectly via semen during artificial insemination. Stallions do not develop signs of infection, but CEM should be considered in mares that have an early return to estrus after breeding to a fertile stallion and/or the presence of vaginal discharge. After diagnosis and treatment, the prognosis for recovery is excellent.

In the press release Bradford reported that the USDA and Puerto Rico Department of Agriculture are currently investigating all the horses that might have come in contact with the inf