E.T.
We have an appointment to get my 15 month old son the flu shot on Saturday. He will be getting a thimerosol-free vaccine, because the only product for kids 6-23 months is thimerosal-free. There are also thimerosal-free ones for older kids as well. This is from the CDC website:
For the 2008-09 season, there is one product licensed for 6-23 month old children (the product is thimerosal-free). For children between the ages of 2 and 5 years of age, there are three products available that are thimerosal-free (sanofi's Fluzone; MedImmune's FluMist) or preservative-free (trace thimerosal- [Novartis's Fluvirin]).
http://www.cdc.gov/FLU/ABOUT/QA/thimerosal.htm
I have heard horror stories of children under the age of 2 getting the flu, so I think the shot is important. Also, I am pregnant, and I intend to get the shot as well.