EVIDENCE OF THIMEROSAL RISK: http://www.vaccinationnews.com/evidence-thimerosal-risk
This is highly relevant, because most parents do not know that thimerosal-free flu shots are available for both adults and children. In fact, most people do not know that the flu shots given to infants and children do not come in separately labeled, pediatric-specific doses, so they assume (quite wrongly) that all vaccines given to children are thimerosal-free.
THIS IS NOT THE CASE. Most of the flu shots available are thimerosal-preserved, and these are the same flu shots given to infants, children, and women in all stages of pregnancy. There is no separately-marketed version for pregnant women infants, or children.
If you want a thimerosal-free flu shot, you have to request it; often, that means special-ordering it. Sometimes, it means that you have to actually look at the package insert, as the nurses do not always know what "thimerosal-free" really means. In my experience, the nurses I have met have all been taught (wrongly) that all pediatric vaccines are thimerosal-free (some have even been taught that all vaccines, period, are thimerosal-free), and they are shocked when they find out that this is not the case. They are not aware that multi-use vaccine vials automatically mean: "preserved with thimerosal."
Now, some of you may argue that the flu shot is a waste of time and money, and I actually agree with you. In fact, most of the research out there agrees with you, according to the Cochrane Collaborative, who has found no evidence that the flu shot saves lives or even prevents the spreading of flu. And certainly, there is growing evidence that the flu shot is linked with a variety of health problems, some severe. The US department of health and human services has admitted and compensated many cases of flu vaccine-caused paralysis, severe autoimmune disorders, and even death.
For those considering a flu shot,or any of the adult vaccines that are still preserved with thimerosal (and your doctor will not inform you of this), please learn all you can about the risks of thimerosal.