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Flu shot doing a poor job of protecting elderly
ATLANTA (AP) — It turns out this year's flu shot is doing a startlingly dismal job of protecting senior citizens, the most vulnerable age group.
Associated Press
February 21, 2013

ATLANTA (AP) — It turns out this year's flu shot is doing a startlingly dismal job of protecting senior citizens, the most vulnerable age group.
Associated Press
February 21, 2013