Will the 2009 H1N1 vaccines that are currently recommended contain adjuvants?
No. According to current federal plans, only unadjuvanted vaccines will be used in the United States during the 2009 flu season. This includes all of the 2009 H1N1 and seasonal influenza vaccines that will be available for children and adults in both the injectable and nasal spray formulations. None of these influenza vaccines will contain adjuvants. 2009 H1N1 vaccines with adjuvants are being studied to determine if they are safe and effective. Experts will review these data when they are available. There is no plan at this time to recommend a 2009 H1N1 influenza vaccine with an adjuvant.
There is no plan at this time to recommend a 2009 H1N1 influenza vaccine with an adjuvant. Adjuvants are chemical additives that increase the effectiveness of a vaccine. Will the 2009 H1N1 influenza vaccine contain thimerosal? The 2009 H1N1 influenza vaccines that FDA has licensed are manufactured in several formulations. Some will come in multi-dose vials and will contain thimerosal as a preservative. Multi-dose vials of seasonal influenza vaccine also contain thimerosal to prevent potential contamination after the vial is opened. Some 2009 H1N1 influenza vaccines will be available in single-dose units, which will not require the use of thimerosal as a preservative. These will be available for our pregnant workers as well as those with a documented severe allergy to thimerosal. Will the benefits of the 2009 H1N1 influenza vaccines outweigh the risks of becoming ill with the Swine flu? Currently the 2009 H1N1 influenza virus (sometimes called “swine flu”) seems to be causing serious he
