Here is the full press release on Swine Flu from the Lancet medical journal.  It highlights the vital role that governments need to take, and also how important it is that people with flu-like symptoms in affected countries stay at home and away from other people.  Those in the poorest nations will be most vulnerable.  Need to do all we can to slow spread even if pandemic looks inevitable in future, to win time to create a vaccine (6 months)

Comment in early days of Mexico Swine Flu epidemic in 2009: Research suggests that the virus causing Swine Flu (H1N1) may turn out to be quite similar to normal flu in mortality rates (1 in 1000).  This is based on a genetic analysis which shows that the virus has receptors which bind to the nose and upper airways, rather than to lung tissue.  This makes it more infectious but probably less dangerous for each person infected.  But these are early days.

Even if the spread of Swine Flu Virus is as well contained as Sars was in 2003, it is clear that huge potential exists for business disruption around the world. Sars only infected 8600 people of which 862 died, but wiped billions of dollars from stock markets in South East Asia and caused major challenges for international travel, as well as social chaos in places like Hong Kong where people feared for weeks to gather in public places.  This mutant version of Swine Flu has jumped from pigs to humans, combining it seems elements of bird flu, swine flu, and human flu.  People who have had human flu in the past are unlikely to be protected, nor those recently vaccinated against human flu.

Dr Patrick Dixon, Chairman of Global Change Ltd  said: "We are in a race against time to prevent a global pandemic.  We must also remember that even if the spread of Swine Flu Virus is as well contained as Sars was in 2003, there could still be huge business disruption around the world.  Sars only infected 8600 people in 2003 of which 862 died, but wiped billions of dollars from stock markets in South East Asia and caused major challenges for international travel, as well as social chaos in places like Hong Kong where people feared for weeks to gather in public places. Sars only infected 8,600 before being contained, but this Swine Flu Virus has probably already infected well over 1,600."