Influenza virus characterisation, Summary Europe, September 2018

This is the eighth, and final, report of the 2017–18 influenza season.

As of week 39/2018, over 240 000 influenza detections across the WHO European Region have been reported. Forty-four percent of the detected viruses were type A, with A(H1N1)pdm09 and A(H3N2) viruses being detected in equal numbers. Type B viruses accounted for 56%; B/Yamagata viruses prevailed over B/Victoria viruses at a ratio of over 50:1.