For the first time in the history of the world's most famous sled dog race, several of the high-performance animals have tested positive for a prohibited drug. Several dogs tested positive for the opioid pain reliever Tramadol, the governing board of the Iditarod Trail Sled Dog Race said in a statement. The team was tested six hours after finishing the nearly 1,600-kilometre race in Nome in March, officials said. Dogs on all teams are subject to random testing between pre-race examinations and along the race trail. Burmeister said several times in a phone interview that no other dogs have ever tested positive in the race.

Source: CBC News October 19, 2017 17:52 UTC