Weekly influenza update, week 41, 2017
ECDC and WHO/Europe publish weekly influenza surveillance data in the report Flu News Europe. This report covers the period week 41 (9-15 October) 2017.
Week 41/2017 (9 – 15 October 2017)
- Low influenza activity was reported by all 39 reporting countries.
- Influenza viruses were detected sporadically in sentinel specimens with equal numbers of influenza A and B type viruses being detected.
- For week 41/2017, data from the 20 countries or regions reporting to the EuroMOMO project indicated all-cause mortality to be at expected levels for this time of the year.
2017/18 season overview
- As s usual for the first weeks of the season, influenza activity is low in the European Region.
- Due to the diversity of A(H3N2) influenza viruses that circulated during the 2017 Southern Hemisphere season, WHO recently recommended a change of the A(H3N2) component for inclusion in seasonal influenza vaccines for use in the 2018 southern hemisphere influenza season. In addition, the influenza B lineage in trivalent vaccines was changed (to a B/Yamagata-lineage virus), compared to the vaccine component (a B/Victoria-lineage virus) recommended for 2017-2018 northern hemisphere influenza seasons.
Read more about influenza surveillance
Seasonal influenza is a preventable infectious disease with mostly respiratory symptoms. It is caused by influenza virus and is easily transmitted, predominantly via the droplet and contact routes and by indirect spread from respiratory secretions on hands etc.Read more
Surveillance reports and disease data on seasonal influenza
Surveillance reports and data: Disease data from ECDC Surveillance Atlas, Annual Epidemiological Reports, Surveillance reports.Read more