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Do the 2009 H1N1 influenza vaccines contain thimerosal?

April 26, 2017contain h1n1 Influenza thimerosal vaccines

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Do the 2009 H1N1 influenza vaccines contain thimerosal?

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FDA licensed (approved) several formulations ofthe 2009 H1N1 influenza vaccines, including multi-dose vials and single-dose units. Multi-dose vials contain thimerosal as a preservative to prevent potential contamination after the vial is opened. Some vaccine manufacturers are producing 2009 H1N1 influenza vaccines in single-dose units, which do not require the use of thimerosal as a preservative. In addition, the live-attenuated version of the vaccine, which is administered intranasally (through the nose), is produced in single-units and does not contain thimerosal. More information on thimerosal.