Study shows benefit of high-dose flu vaccine in elders

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A high-dose version of the flu vaccine protected older people from influenza infection better than the normal-dose version, according to a study in The New England Journal of Medicine. The manufacturer of the high-dose flu shot, called Fluzone, conducted the study.

The study involved 32,000 people 65 and older who were immunized during the 2011–12 and 2012–13 flu seasons. The high-dose version contained four times the amount of vaccine as in a standard shot.

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