Prior to the World Cup last year, all of the military personnel involved - certainly on the medical side of things, such as myself - were inoculated against H1N1, and we certainly not the only ones getting the shots. So far as I know, and please correct me if I'm wrong, there wasn't a single recorded case of swine flu during the soccer tournament. The shots we were given before hand though? Oy gevaldt, I don't think I've ever had flu as badly as I did after I had that shot, and it'd be interesting to know how many man-days we lost because people were so sick from the inoculation.
I'm not one of the misguided people who say immunisations are dangerous & so on, or that you shouldn't get your flu shot because it *will* make you sick, and you'll probably still get flu afterwards anyway, as that's patently false. It does however happen that *some* people will become sick after a flu shot, and in the context of there not having been any swine flu cases during the world cup - again, that I know of - you have to wonder if it wouldn't have been far more cost effective and less disruptive to just treat cases when / if they occurred, rather than mass inoculations?
Then again, it's easy to say this looking back with 20/20 hindsight, I'll be the first to admit.....