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Swine flu

Since news of a deadly flu outbreak in Mexico City came to light health services around the world have been bracing themselves for a possible pandemic. But it's still unclear how dangerous this virus is.. or how far it may have spread. Our science reporter Matt McGrath investigates.

9 minutes

Last on

Tue 28 Apr 2009 22:41GMT

Broadcasts

BBC World Service Archive

BBC World Service Archive

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