Laramie, Wy – Investigators continue to look for the source of the brucellosis cases in a Sublette County cattle herd. Much has been made of the elk herds in the area, which are known to carry brucellosis. No one is officially pointing a finger at the elk, but State Veterinarian Jim Logan says they've ruled out cattle as a cause of the transmission. He says it likely came from wildlife.
Greater Yellowstone bison also carry brucellosis, but those animals are a considerable distance from the outbreak near Boulder. The Muddy Creek elk feedground is about a half-mile from where the infected herd grazed.