Hello and welcome to a special Case Notes programme in which I will be talking to some of the UK's leading experts about the outbreak of the new strain of flu in Mexico that has got everyone so worried.
It's six o'clock on Monday 27th April, good morning, this is Today with James Naughtie and Sarah Montague.
This morning's headlines: The Health Protection Agency says it expects swine flu to reach Britain. The number of people killed in the outbreak in Mexico has risen to 103.
Swine flu has arrived in Europe with a confirmed case in Spain. In the UK 25 suspected cases have been reported.