At a cocktail party recently, I met a doctor who works on the forefront of avian flu. He said that the flu WILL hit, they don't know if it will be in 5 years or 20, but that he and a group of other doctors have a fully stocked retreat in the wilds of Canada where their families can wait it out. They estimate it will rage through the human population for 6 months.
The point being that while you're in hiding for 6 months, there aren't going to be any doctors to take care of you, and you're going to need to have some knowledge of what to do if you cut your finger or break your arm.
So you should either buy this book, or make sure you've got about 6 months worth or martini fixins. Wake me when it's over.