Caduceus eloquence). The caduceus is often incorrectly used as a symbol of healthcare organizations and medical practice, particularly in North America, due to confusion with the traditional medical symbol, the Rod of Asclepius, which has only one snake and is never depicted with wings. It is thought that this symbol's long lasting association with the medical profession stems from early use of twigs to draw out long bodied inter muscular parasitic worms by wrapping them slowly around the twig so as not to break them or allow them to escape back into the body, a successful treatment still in use today,
Caduceus as a symbol of medicine popularised the caduceus, whilst retaining the caduceus for its own plaque and insignia, is now part of the Army Medical Department, which has since adopted the Rod of Asclepius as its main symbol. Furthermore, when the U.S. Air Force designed new medical insignia, it also adopted the rod of Asclepius. (The Royal Air Force (UK) medical services have, however, used the caduceus as uniform collar insignia since the foundation of the RAF in 1918.) Despite widespread acceptance of the caduceus as a medical symbol in the United States, it has been observed that the rod of Asclepius has "the more