How is the 2009 H1N1 nasal spray vaccine different from the seasonal nasal spray vaccine?
The 2009 H1N1 nasal spray vaccine is being made in the same way as the seasonal nasal spray vaccine, but instead of containing three weakened live flu viruses, it only contains weakened 2009 H1N1 virus. (That is why it’ is called a “monovalent” vaccine.)
The recommendations for who can get the 2009 H1N1 nasal spray vaccine are the same as for seasonal nasal spray vaccine. Live Attenuated Influenza Vaccine (LAIV) is recommended for use in healthy people 2 years to 49 years of age who are not pregnant.
"Healthy" indicates persons who do not have an underlying medical condition that tends to make them susceptible to flu complications.
Last Reviewed: 10/08/2009
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