Are there two different types of H1N1 flu vaccine?
Yes, there are two different types of the H1N1 flu vaccine that is available for people. One contains an adjuvant and one does not. An adjuvant is a substance that is added to a vaccine to boost a person’s immune system and their response to a vaccine. An unadjuvanted vaccine does not contain this substance. Studies show that the adjuvant being used in the H1N1 flu vaccine is safe. Pregnant women, however, should receive the unadjuvanted vaccine because there is no safety data on using the adjuvanted vaccine in pregnant women. Do I still need the seasonal flu shot if I get the H1N1 flu vaccine? Yes. The H1N1 flu vaccine does not protect against the virus strains that cause the seasonal flu, and the seasonal flu shot does not protect against the strain of H1N1 flu virus responsible for the current pandemic. The order in which you receive the two vaccines may be different, depending on where you live, your medical history, and your age. Check with your doctor or local public health unit
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