Human experimentation occurred with typhus, glanders and melioidosis in the Solovetsky camp. See also glanders and equine lymphangitis. Glanders primarily affects those who work closely with horses and donkeys. Potassium permanganate may be used to prevent the spread of glanders among horses. Cook died there in 1924 of glanders, an infectious disease he caught from his dog. He also suggested it for epilepsy, neuralgia, diabetes and chronic glanders. Moreover, all the horses were dying from glanders. Glanders has been known since antiquity, with a description by Hippocrates around 425 BCE. Epizootic lymphangitis is similar to glanders, but caused by the fungus "Histoplasma farciminosum". Glanders is endemic in Africa, Asia, the Middle East, and Central and South America. Glanders was a significant problem for civilian use of horses, as well. The Germans also targeted Romania, Norway, and Spain's animal supplies with cultures of glanders. Both Glanders and epizootic lymphangitis may be present in the same animal. The mallein test is a sensitive and specific clinical test for glanders. From the Middle Ages to the 1900s, glanders was a significant threat to armies.