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The Problem with Polio Vaccination

How a WHO campaign to erradicate polio actually caused an outbreak of the disease in Haiti. A new fossil of a Jurassic mammal found in Patagonia. DNA and how it is being used to build computers. The theoretical anthropology of sending a "generation starship" to establish a colony on another planet.

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26 minutes

Βι¶ΉΤΌΕΔ World Service Archive

This programme was restored as part of the World Service archive project

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