Effectiveness of the trivalent influenza vaccine.
نویسندگان
چکیده
Bottom line For healthy adults, the flu shot reduces the influenza rate when the vaccine is well matched (number needed to treat [NNT] of 12 to 37). A poorly matched vaccine has diminished effectiveness. For community-dwelling seniors, the NNT to prevent 1 case of influenza is 40. The flu shot has not been shown to decrease hospitalizations. Evidence that the flu shot decreases mortality is likely biased.
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ورودعنوان ژورنال:
- Canadian family physician Medecin de famille canadien
دوره 60 1 شماره
صفحات -
تاریخ انتشار 2014