Here's a CDC page on it:

http://www.cdc.gov/mmwr/preview/mmwrhtml/00046738.htm

As you'll see, it discusses various studies and provides links to papers examining various cases in which people have had an adverse side-effect to a vaccine.

Please, everyone, no comments about how that may be true but what about this and that and the other; the poster asked for a link, here it is.

It is fairly well known that the flu vaccine uses eggs in its production, and that people allergic to eggs shouldn't get a flu vaccine. Is it really so far fetched to think that something similar might happen with the vaccines given to children?