A (red) Star of Life and a (modified) Caduceus. The Caduceus has been modified to eliminate reference to treatment against poisoning. This image is intended to be used as the main pictogram for health at wikipedia; all references to religions have been removed. Note that the red in the cross refers to bleeding, and not to the red cross as a health organization symbol. The Caduceus is blue rather than black to maintain a correlation with the original color of the Star of Life.
Own work based on: Health pictogram.png by KVDP
Original:  KVDP Vector:  Slashme