Edward Jenner, British physician, c 1820.
 
 
 

Edward Jenner, British physician, c 1820.

© Science Museum / Science & Society Picture Library

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Stipple engraving, 'The Discoverer of Cow Pock Inoculation', published by J Robins & Co, Ivy Lane, London in 1823. Jenner (1749-1823), an English doctor and pupil of John Hunter, introduced fluid from a cowpox sore through a person's skin, in order to inoculate them against smallpox, a similar but more dangerous disease. He called his method 'vaccination' from 'vacca', the Latin word for cow. Although his discovery pre-dated any scientific explanation, his research, published as 'Inquiry into the Cause and Effects of Variolae Vaccinae [cow-pox]' in 1798, showed that using fluid from a human with cowpox was safer than variolation; inoculating non-infected people with fluid from pustules of smallpox. The 1853 Vaccination Act heralded an era of compulsory vaccination against smallpox.
 
Image Ref.
10400498
 
 

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