This is the fifth report of the 2017–18 influenza season. As of week 20/2018, nearly 240 000 influenza detections across the WHO Europe region have been reported.
The ECDC Influenza Virus Characterisations Reports are published periodically and provides an overview of the technical details of the circulating influenza viruses, such as antigenic and genetic properties, with a reference to the current vaccine strains. It also summaries the developments of the viruses since the last report, as well as the main developments for the ongoing season.
This is the third report of the 2017–18 influenza season. As of week 8/2018 over 151 000 influenza detections across the WHO European Region have been reported. Types A and B viruses have been detected in the proportions 40% and 60%, respectively, with A(H3N2) being slightly more prevalent than A(H1N1)pdm09 viruses (1.1:1) and B/Yamagata being significantly more prevalent than B/Victoria viruses (45.8:1).
This is the second report of the 2017–18 influenza season. As of week 1/2018, nearly 37 000 influenza detections across the WHO European Region have been reported.