Weekly influenza update, week 44, 2017
ECDC and WHO/Europe publish weekly influenza surveillance data in the report Flu News Europe. This report covers the period week 44/2017 (30 October–5 November 2017).
Intensity of influenza activity in Europe remained at a low level, although sporadic detections or local spread were reported by 40% of the reporting countries.
Overall, 1% of sentinel specimens tested positive for influenza virus.
Data from the 14 countries or regions reporting to the EuroMOMO project indicated that all-cause mortality was at low levels, as expected for this time of the year.
2017/18 season overview
Since week 40/2017, few influenza viruses have been detected in sentinel and nonsentinel
Of the viruses subtyped or assigned to a lineage, for detections in both sentinel or nonsentinel surveillance systems, most were identified as A(H3N2) or B/Yamagata viruses. For the northern hemisphere season the A(H3N2) vaccine component is the same as that used in 2015–2016 and only the quadrivalent vaccine contains a B/Yamagata component; both were recommended to be changed for the trivalent vaccine to be used in the next
southern hemisphere season.
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