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Edward Jenner is credited with developing the first vaccine against:
A{'text': 'Polio'}
B{'text': 'Smallpox'}
C{'text': 'Cholera'}
D{'text': 'Rabies'}
Answer & Solution
Correct answer: B. {'text': 'Smallpox'}
1. The concept of vaccination was pioneered by Edward Jenner in the 1790s.
2. He used pus from cowpox lesions to confer immunity against **Smallpox**.
3. Polio vaccine came from Salk and Sabin; rabies vaccine from Pasteur; cholera vaccine much later.
4. So Jenner's pioneering vaccine targeted **Smallpox**.
_Source: Selina Concise ICSE Class 8 Biology Ch 8 "Diseases and First Aid", Historical context section_
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