Global swine flu pandemic declared
World health bosses have declared the swine flu outbreak the first global flu pandemic for more than 40 years.
The last global pandemic was declared in 1968 over an outbreak of Hong Kong flu which killed about one million people.
WHO said the H1N1 swine flu virus had infected 27,737 people in 74 countries and caused 141 deaths.
Most of the cases have been in North America, but Europe and Australia have seen a sharp increase in recent days.
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