Wasn't W supposed to give a warning of a flu pandemic yesterday? Did that happen? I got a flu shot. Am I saved?
Any shot being given now is for the seasonal flu that is a new combination of strains each year that depends on what emerges in the Far East each year during the late winter to early spring time frame, IIRC. The links in comment 6 review the bird flu situation fairly well.
You are saved against the flu's which that flu shot was made to help protect against, but you aren't protected from the avian flu, because there is no vaccine for it.
The reason there is no vaccine against this "pandemic" because the strain doesn't exist yet. There is no pandemic, no killer flu. This is a media generated scare much like global warming. which doesn't exist either. If you really want to be afraid and hide in a bubble your entire life, it's possible we could have a "pandemic" flu or some other virus sweep the planet every year. Wash your hands, stay away from filthy whores and other forms of recreation sex outside of marriage, including unnatural sex and you'll be fine.