Swine Flu: Your questions answered
Our expert answers more of your questions on swine flu
Is there a proper definition of how severe a disease is before it can be classed as a pandemic? ...more
Is there a proper definition of how severe a disease is before it can be classed as a pandemic? ...more
| Published | 22:14:34 on Tuesday 28th April 2009 |
| International Date: | 2009-04-28 |
| UK Full Date: | 28/04/2009 |
| UK Short Date: | 28/04/09 |