CDC Update:Questions and Answers on the Flu Vaccine: "There are two types of vaccines that protect against the flu. The 'flu shot' is an inactivated vaccine (containing killed virus) that is given with a needle, usually in the arm. A different kind of vaccine, called the nasal-spray flu vaccine (sometimes referred to as LAIV for Live Attenuated Influenza Vaccine), was approved in 2003. "
Tuesday, July 25, 2006
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