MISSOULA - We answer your medical questions every Wednesday on Montana This Morning during our Morning Rounds segment.
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Dr. Casey Harbine discusses some of the myths surrounding the annual flu vaccine during the Nov. 29 edition of Morning Rounds.
The U.S. Centers for Disease Control has lots of information about the flu vaccine on their website, including the following:
Can the flu vaccine give me the flu?
No, a flu vaccine cannot cause flu illness. Flu vaccines that are administered with a needle are currently made in two ways: the vaccine is made either with a) flu vaccine viruses that have been ‘inactivated’ and are therefore not infectious, or b) with no flu vaccine viruses at all (which is the case for recombinant influenza vaccine). The nasal spray flu vaccine does contain live viruses. However, the viruses are attenuated (weakened), and therefore cannot cause flu illness. The weakened viruses are cold-adapted, which means they are designed to only cause infection at the cooler temperatures found within the nose. The viruses cannot infect the lungs or other areas where warmer temperatures exist.