In order to meet the growing need for swine flu vaccination in the United States, the Food and Drug Administration (FDA) has approved another H1N1 vaccine for use in the U.S., distributed by GlaxoSmithKline. This vaccine is based on the seasonal flu vaccine called FLULAVAL.
Formaldehyde in the swine flu vaccine
The formulation used in FLULAVAL contains formaldehyde as a result of the vaccine manufacturing process. This is an inactivated virus, used for injection. Formaldehyde is used during vaccine processing in order to kill the virus.
Mercury in the new H1N1 vaccine
According to the package insert for FLULAVAL, there are 25 micrograms of mercury in each .5mL dose of the H1N1 vaccine distributed in multi-dose vials. There are no single-dose vials of this vaccine.
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