but I wonder how big the vulnerable section has to be to justify mass vaccination and the risks it imposes?
Thankfully, at the moment, it appears that swine flu is not going to be as bad as was predicted…
However, viruses can mutate, and the best way to get viruses to mutate 'in the wild' is to let them have lots of baby viruses in a number of different hosts.
Vaccination of susceptible folk is aimed at reducing their chance of getting a very nasty disease. In the rest of us, it's aimed at reducing the spread of the virus, stopping it replicating, and protecting others who may not be as resistant.
The plans to deal with a full scale epidemic make very, very scary reading; I'm a very experienced ITU nurse, but the thought of me supervising either a group of nurses who don't have any ITU experience who are looking after properly sick people, or me looking after paediatric patients is one that fills me with dread…