Hygieia (also Hygiea or Hygeia, in Latin Hygea or Hygia), was the daughter of Aesculapius, the god of medicine and healing, and Epione, the goddess of soothing of pain. She was the goddess of health, cleanliness and sanitation. While her father was more directly associated with healing, she was associated with the prevention of sickness and the continuation of good health. Her name is the source of the word "hygiene." She was imported by the Romans as the Goddess Valetudo, the goddess of personal health, but over time she was increasingly identified with the ancient Italian goddess of social welfare, Salus.
Trebonianus Gallus, June or July 251 - July or August 253 A.D.
After Hostilian died from the plague in 251, Trebonianus Gallus' elevated his son Volusian to the throne. This coin is dedicated to Salus and the health of the two emperors. Apparently Salus did keep them safe from the plague but that did not keep them alive. Father and son were both killed by mutinous troops in 253, the same year this coin was struck.
RS65477. Silver antoninianus, RIC IV 46a, RSC IV 117, SRCV III 9649, F, flan crack, nice toning, weight 3.386 g, maximum diameter 22.5 mm, die axis 180o, Rome mint, Jan - Jul/Aug 253 A.D.; obverse IMP CAE C VIB TREB GALLVS AVG, radiate, draped and cuirassedbust right, from behind; reverseSALVSAVGG, Salus standing left, from patera in right feeding serpent coiled around altar, long scepter vertical behind in left; rare; $40.00 (€30.00)