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Jenner inoculated people with small amounts of cowpox to prevent them from getting smallpox (1749-1823)
Else clues• Bruce who won the 1976 Olympic decathlon
• Decathlon champ
• Decathlon champ Bruce
• Eradicator of smallpox
• Olympian Bruce
• Smallpox vaccine discoverer
• Vaccination pioneer Edward
• English physician who pioneered vaccination