What is the difference between the intranasal and injectable vaccine?
The seasonal and 2009 H1N1 flu vaccines can be given by shot or by nasal spray. The injectable vaccine, or the “flu shot,” is made with a killed flu virus. It is given with a needle, usually in the arm. The other type of flu vaccine, a nasal spray, is made with a live, weakened flu virus. The nasal spray flu vaccine should be used only in healthy people 2-49 years of age who are not pregnant. The nasal spray vaccine is safe for women after they have delivered, even if they are nursing.
