For both seasonal flu and 2009 H1N1 flu there are 2 forms of flu vaccines that offer protection. The "flu shot" is an inactivated vaccine, containing killed virus, that is given with a needle. The nasal spray, also called Live Attenuated Influenza Vaccine (LAIV), is made with live, but weakened and cold-adapted flu viruses that do not cause the flu. Antibodies that protect against flu virus infections develop about 2 weeks after vaccination.
Flu shot vs. nasal spray
Seasonal and 2009 H1N1 flu shots can be given at the same time. A flu shot can also be given with a nasal flu vaccine. However, both nasal vaccines CANNOT be given at the same time. If you prefer the nasal vaccine, the doses should be separated by at least 4 weeks.
Click here for information on who should NOT receive the nasal spray
Seasonal
The seasonal flu shot is approved for use in people ages 6 months and older, including healthy people, pregnant women and people with chronic medical conditions.
The nasal spray is approved for use in healthy people ages 2-49 who are not pregnant and do not have an underlying medical condition.
2009 H1N1
The 2009 H1N1 flu shot is approved for use in people ages 6 months and older, including pregnant women, healthy people and people with chronic medical conditions.
The nasal spray is approved for use in people ages 2-49 who are not pregnant and do not have chronic medical conditions.
Click here for more information on seasonal flu and 2009 H1N1 flu vaccine