Sled dog lighter sled dogs." Outside of Alaska, dog-drawn carts were used to haul peddler's wares in cities like New York. In 1925, there was a diphtheria outbreak in Nome, Alaska. There was not enough serum in Nome to treat the number of people infected by the disease. There was serum in Nenana, but the town was away, and inaccessible except by dog sled. A dog sled relay was set up by the villages between Nenana and Nome, and 20 teams worked together to relay the serum to Nome. The serum reached Nome in six days. The Iditarod Trail was established on
Iditarod Trail Sled Dog Race and forage for food when the ground is thick with snow. As a result, the moose sometimes prefer to use pre-existing trails, causing hazards for the dog teams. In 1985, Susan Butcher lost her chance at becoming the first woman to win the Iditarod when her team made a sharp turn and encountered a pregnant moose. The moose killed two dogs and seriously injured six more in the twenty minutes before Duane "Dewey" Halverson arrived and shot the moose. In 1982, Dick Mackey, Warner Vent, Jerry Austin, and their teams were driven into the forest by a charging moose. Otherwise,