Swine flu: How serious a threat?
With the UK confirming two cases of swine flu and WHO raising its alert level from three to four, how serious a threat does the disease pose to us all?
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| Published | 09:30:13 on Tuesday 28th April 2009 |
| International Date: | 2009-04-28 |
| UK Full Date: | 28/04/2009 |
| UK Short Date: | 28/04/09 |