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It's my understanding they no longer use attenuated viruses, which are live strains, in a weakened state.....thus making the flu shot safer.
I was not a believer until a few years ago.
Now, I get one every year and I have not had the flu....it doesn't stop colds..but if you're prone to the flu or pneumonia, it's a good idea.
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Raven
~RETIRED~
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