Believe it or not, it’s time once again to talk about influenza. The typical flu season in the United States begins after Labor Day, and can extend into the early spring of the following year. Our best defense has always been, and continues to be, the flu vaccines. How well the flu vaccine works can depend in part on the match between the vaccine viruses and circulating viruses. Preliminary estimates show that last season, people who were vaccinated against flu were about 40 percent to 70 percent less likely to be hospitalized because of flu illness or related complications.
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