Caduceus as a symbol of medicine worth noting that hospital stewards were not physicians; they played a supporting role preparing drugs for surgeons, supervising nurses and cooks, maintaining accounting and medical records, and in emergencies sometimes performed minor surgery or provided prescriptions. Later, in 1871, the Surgeon General designated the caduceus as the seal of the Marine Hospital Service (destined to become the U.S. Public Health Service in 1912). Gershen states that the change was for aesthetic reasons, whereas Friedlander states the caduceus was adopted by the Marine Hospital Service "because of its relationship with merchant seamen and the maritime industry". The caduceus was formally adopted
Caduceus as a symbol of medicine documented mistakes, misunderstandings and confusion. Before the ancient Romans and Greeks (about 2612 BCE), older representations from Syria and India of sticks and animals looking like serpents or worms are interpreted as a direct representation of traditional treatment of "dracunculiasis", the Guinea worm disease. While there is ample historical evidence of the use of the caduceus, or herald's staff, to represent Hermes or Mercury (and by extension commerce and negotiation), early evidence of any symbolic association between the caduceus and medicine or medical practice is scarce and ambiguous. It is likely linked to the alchemical "universal solvent", Azoth, the symbol