Vetsweb (press release)
New research claims to settle the controversial and long-running debate over whether domestic sheep can infect bighorn sheep with the bacteria that cause fatal respiratory pneumonia. A research team led by Dr. Sri Srikumaran at the Washington State University College of Veterinary Medicine tagged Mannheimia haemolytica isolated from domestic sheep to show that domestic sheep could transmit the deadly bacteria to bighorn sheep when they were in contact with each other….