Girolamo Fracastoro (Latin: Hieronymus Fracastorius; c. 1476/8 – 6 August 1553[1]) was an Italian physician, poet, and scholar in mathematics, geography and astronomy.[2] Fracastoro subscribed to the philosophy of atomism, and rejected appeals to hidden causes in scientific investigation. His studies of the mode of syphilis transmission are an early example of epidemiology.