Symbols used by medical and healthcare professions.
A staff with a single serpent coiled around it, associated in Greek mythology with Asclepius, the god of medicine.
A winged staff with two serpents wound around it, originally the attribute of Hermes (Mercury), the messenger god.
A trefoil of overlapping circles, designed to be instantly recognisable as a warning for biological hazards.
A black human silhouette with a starburst on the chest, in a red-bordered diamond — the GHS symbol for serious, longer-term health hazards.
A blue six-barred star with a serpent-and-staff at its centre, marking emergency medical services.
A serpent coiled around a stemmed bowl, marking pharmacy.
A capital T, the SI unit symbol for the tesla.
The two letters Sv, the SI unit symbol for the sievert.
A capital H inside a circle, marking a helicopter landing area.