Iowa State University Veterinarian Records, RS 22/6/0/9, University Archives, Special Collections Department, Iowa State University, http://www.add.lib.iastate.edu/spcl/arch/rgrp/22-6-0-9.html
Brucella canis is a gram negative coccobacillus that was first isolated in 1966. It was first recognized in large breeding colonies of beagles, but subsequent independent investigators found many other breeds and mixed-breed dogs to be infected with the organism.
"Brucella canis in Dogs,"
Iowa State University Veterinarian: Vol. 42
, Article 8.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol42/iss3/8