Another Reason to Get the Flu Shot Every Year

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Abstract

SYNOPSIS: In a case-control study, among older adults, repeated vaccination for influenza was twice as effective in preventing severe influenza compared to non-severe influenza in patients who were admitted to the hospital.

SOURCE: Casado I, et al. Repeated influenza vaccination for preventing severe and fatal influenza infection in older adults: A multicentre case-control study. CMAJ 2018;190:E3-E12.

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