This report describes the 2016–2017 influenza season, which was dominated by influenza A(H3N2). The season came to a first, intense peak in the northern part of the country during the Christmas holidays, followed by a second peak in the south in February. The season was intensive and particularly severe for those aged 65 years and over, with high mortality.

The Public Health Agency of Sweden has prepared this report for the World Health Organization (WHO) as part of the agency's function as a National Influenza Centre (NIC).

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