After a rough, record-setting flu season, doctors and health officials are bracing for another wave of fever, misery and respiratory distress. In the U.K., health officials are warning about an early rise in flu levels among children and young adults. In Japan, health officials recently declared a flu epidemic and closed schools after experiencing an unusually high number of flu cases early in the season.
How bad will the flu be? Here's what to know after last year's record

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