Glanders is a contagious, zoonotic infectious disease caused by the bacterium Burkholderia mallei, which primarily occurs in horses, mules, and donkeys, but can also be contracted by dogs and cats, pigs, goats, and humans. The term glanders derives from the Middle English word glaundres and from the Old French word glandres, which both denote glands. Other terms for the glanders disease are the Latin: malleus, the Spanish: muermo, the German: Rotz, and the Norwegian: snive.