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Does the H1N1 vaccination given to the public contain thimerosal?

Some of the H1N1 flu products do contain thimerosal, a mercury-based preservative, said Barbara Schnitker, director of nurses at Lawrence-Douglas County Health Department. It is used to protect against potential microbial contamination in multi-dose vial formulations, she said. Such contamination could cause serious illness or death. Three leading federal agencies — Centers for Disease Control and Prevention, Food and Drug Administration, and National Institutes of Health — have reviewed the published research on thimerosal and found it to be a safe product to use in vaccines. For more information about thimerosal, visit the CDC’s Web site at


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