Influenza virus characterisation, February 2019

This is the fourth report for 2018–19 influenza season. As of week 8/2019, 147 766 influenza detections 76 across the WHO European Region had been reported. Detections were 99.2% type A viruses, with A(H1N1)pdm09 prevailing over A(H3N2), and 0.8% type B viruses, with 63 (70%) of 90 ascribed to a lineage being B/Yamagata-lineage.