Jenner and Vaccination

HistoryAQAGCSEUnit: Medicine Through Time
Free taster
5 of 6 sections open
The basics

Setting the Scene

📖 Setting the Scene

Smallpox was a killer: 400,000 Europeans died from it every year. Those who survived were often blinded or scarred for life. But country doctor Edward Jenner noticed something strange: milkmaids who caught cowpox (a mild disease from cows) never seemed to get smallpox. In 1796, he took pus from a cowpox sore on milkmaid Sarah Nelmes and injected it into 8-year-old James Phipps. Six weeks later, he injected James with smallpox. The boy didn't get sick. Vaccination was born — though Jenner had no idea WHY it worked.

Edward Jenner & Smallpox - BBC Teach (5 mins)

What was variolation (inoculation)?: Deliberately infecting someone with mild smallpox material to build immunity — used before Jenner's vaccine but risky (could cause full smallpox)
Key terms

History glossary

What was variolation (inoculation)?
Deliberately infecting someone with mild smallpox material to build immunity — used before Jenner's vaccine but risky (could cause full smallpox)
Exam tip

Earn the mark scheme marks

📝 Exam Technique: Jenner's Significance

For significance questions: Jenner is significant because he developed the first SCIENTIFICALLY-TESTED vaccine, AND because his work led to government involvement in public health (1853 compulsory vaccination = state taking responsibility for population health).

Limitations: Without understanding WHY (germ theory), no one could develop vaccines for other diseases until Pasteur 80 years later.

Now try it yourself

Quiz · Question 1 of 8

Who was the boy Jenner injected with cowpox in his 1796 experiment?

Tap an answer to check it

Revise every History topic, free during alpha

Jenner and Vaccination is one of 61 topics on PrepWise — all aligned to your exam board.

Start revising free →