Slide 1
Vaccinating was not enough: teams had to find cases
Smallpox eradication required finding remaining infections as well as delivering vaccinations.
More to Read
Vaccination was essential to smallpox eradication, but counting doses was not enough. Teams also needed to discover where infections remained. Surveillance made continuing transmission visible so that containment efforts could reach it.
Slide 2
The international programme adapted after 1967
The intensified international smallpox programme began in 1967 and adapted as the campaign progressed.
More to Read
The intensified international programme began in 1967. Its later stages placed strong emphasis on finding cases and containing outbreaks alongside vaccination. The end of transmission emerged from coordinated efforts, rather than a single technique replacing all previous work.
Slide 3
Each case helped teams find contacts and contain spread
Investigating a smallpox case helped teams identify contacts and direct containment, including vaccination.
More to Read
Investigating a case helped identify contacts and direct containment, including vaccination. In a conceptual network, attention moves from one detected infection toward possible connections. Actual fieldwork required people, records and local knowledge, not just a neat diagram.
Slide 4
Eradication required evidence that transmission had ended
The World Health Assembly declared smallpox eradicated in 1980 after evidence supported the end of transmission.
More to Read
The World Health Assembly declared smallpox eradicated in 1980. That conclusion required confidence that transmission had ended, not merely that a campaign had administered many vaccinations. Detection and verification were therefore part of the achievement alongside prevention.
Slide 5
Vaccines worked within a wider health system
Smallpox eradication joined vaccines with local health workers, national programmes, surveillance and international cooperation.
More to Read
Local health workers, national programmes and international cooperation connected vaccines with the places they were needed. Smallpox shows the importance of delivery and surveillance together. Its history does not establish that the same containment strategy would eradicate every disease.
Sources
- History of smallpox vaccination
WHO
- History of Smallpox
US Centers for Disease Control and Prevention