John Haygarth
British physician / From Wikipedia, the free encyclopedia
For the Australian footballer, see John Haygarth (footballer). For the English cricketer and magistrate, see John Haygarth (cricketer).
John Haygarth FRS FRSE (1740 – 10 June 1827) was an 18th-century British physician who discovered new ways to prevent the spread of fever among patients and reduce the mortality rate of smallpox.[1]