The Caduceus

The “caduceus” [kuh-doo-see-uhs] is the Greek symbol of the medical profession that became established in the United States in the late 19th and early 20th century.

Numbers 21:9 (NKJV)
Then the Lord said to Moses, “Make a fiery serpent, and set it on a pole; and it shall be that everyone who is bitten, when he looks at it, shall live.”