Tracing the strain
The World Health Organisation has warned that the worldwide spread of the so-called is...
The Documentary Podcast: Archive 2009 · BBC World Service
August 4, 200923m 16s
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Show Notes
The World Health Organisation has warned that the worldwide spread of the so-called Swine Flu virus is now unstoppable. As cases continue to multiply, reporter Julian O'Halloran investigates the origins of the H1N1 virus and examines claims that it is linked to factory style pig farming.