The world owes much to Edward Jenner, the Gloucestershire physician who invented vaccinations in 1796. Having noticed that dairy maids were immune to smallpox because they had previously contracted cowpox, he injected a local eight-year-old with a strain of the latter disease. It worked. After the jab, the boy proved immune to smallpox, and Mr Jenner used the Latin word for cow, vacca, to name his ingenious new technique.

– #AntiVaxxer –
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