A group of young elk wait patiently to be sorted and tested for brucellosis. Brucellosis is a bacterial-caused disease of the reproductive tract, so only adult females are tested for the disease. Brucellosis causes abortion in hoofed animals and is transmitted by direct contact with infected animals or with an environment that has been contaminated with discharges from infected animals. There is no cure for the disease. Photo by Cat Urbigkit.