<<Disclaimer: Verify this information before applying it to your situation.>>

To the best of my knowledge and research over the years, I don't know of any risks with the flu shot. The only issues I have heard is a potential for the nasal version to not be as effective on celiacs due to the autoimmune difficiency. 
Lynn shadle gabriel
Sent from my Verizon Wireless BlackBerry

Visit the Celiac Web Page at Http://www.enabling.org/ia/celiac/index.html
Archives are at: Http://Listserv.icors.org/SCRIPTS/WA-ICORS.EXE?LIST=CELIAC