CDC officials are worried that an overstock of flu vaccine could lead to millions of doses being thrown away.
This could discourage manufacturers from making as much vaccine in the future. As a result, the CDC is encouraging Americans to get flu shots even after Thanksgiving, which is when public demand generally drops off.
More than 110 million doses are being made for the 2006-2007 flu season.
This is a record amount; the previous high was 95 million in 2002-2003. That year, 12 million doses went unused and one manufacturer ceased to make shots. This year, CDC officials are promoting November 27 through December 3 as "National Influenza Vaccination Week."
Meanwhile, PutChildrenFirst.org, an advocacy organization of parents with autistic children, has sounded a warning about thimerosal, a mercury-based preservative found in most flu shots. They contend that thimerosal contributes to autism and other developmental disorders in children. Thimerosal was removed from other childhood vaccinations in 2003, but flu vaccine sold in multidose vials still has the preservative.