Swine flu recall

U.S. Health officials have ordered the recall of about 800,000 doses
of swine flu vaccine after tests showed the doses had fallen below
targeted potency levels.

The recall targets pre-filled syringes intended for young children, ages 6 months to nearly 3 years. The shots were manufactured by Sanofi Pasteur, the world's largest manufacturer of vaccines.

The doses were distributed last month, and most have already been used, according to the Centers for Disease Control and Prevention.

Officials issued the recall over concerns about the strength of the doses in question. Tests done prior to shipping showed that the vaccine strength was acceptable. However, tests done in the following weeks showed that the vaccine strength had fallen slightly below required levels. The reason for the sudden drop in potency remains unclear

Now what do you do if you have vaccinated your child recently with the H1N1 Swine Flu vaccination? Health officials "don't think" children need to get vaccinated again, even if they got two doses from the same lots, according to the Center for Disease Control.