As some of you know, I worked with seasonal influenza policies and research for the last 2+ years, and have sat in on endless hours of scientific discussions among the world’s top flu experts. I am not a researcher, but I have handled dozens of research papers and been in researcher debates for about 2.5 career years. I really like the document I've linked & pasted here as a summary of why people should not worry about getting their vaccines, so I thought I'd post it here.
In addition, on a more personal note, I really suggest that if you have coworkers or loved ones in high risk groups that you should get vaccinated to help reduce the chance that they'll get gravely ill. Also remember that most high risk people are invisible in their high risk status (like me - I look healthy but I actually have asthma and a history of dozens of respiratory infections which have left me with very over-reactive lungs.) Early pregnancy, immunocompromised health conditions and caregivers for children/elderly are also invisible situations that would really benefit from increasing herd immunity to all diseases -- and right now H1N1 is the most prevalent germ.
Normally with the seasonal flu shot the vaccine contains 3 deactivated virus strains that scientists have calculated to be the most likely ones to circulate that year. If your community has a different vaccine circulating that isn't in the trivalent vaccine, then you're S.O.L. THIS year, the H1N1 vaccine offers us a waaay better chance of immunity `cause we actually know which virus is the most common one, and we've prepared a specific shot for it. So, if you're usually willing to run on luck and usually decide not to bother with the trivalent vaccine, you might want to reconsider with respect to this special monovalent vaccine `cause it's such a specific product.
If you've already had the swine flu (mild or serious), then you don't need to be vaccinated cause your immune system will carry memory of it and will fight it off if you are exposed again. (Vaccines mimic this process.)
Check out Myths 2, 3 and 4 in the linked article as they directly address a lot of the negative news hoopla that's in circulation.
( full text here )source:
http://www.phac-aspc.gc.ca/alert-alerte/h1n1/vacc/myth-mythe-eng.phpNote: if you are in a country other than Canada, you mave have access to other vaccine products such as an inhaled nasal drop or mist. The same principles apply in terms of how it builds immunity. The factors that stimulate your immune system into a response are just being delivered another way.