Summary of the influenza 2014–2015 season in Europe
Increased influenza activity started in week 51/2014 this season when the percentage of influenza positive laboratory tests crossed the 10% threshold. The season lasted for 21 weeks until week 19/2015, when the positivity rate dropped below 10%. The peak of the season - with the highest proportion of specimens tested positive (55%) - occurred in week 07/2015. The peak varied between countries, occurring in week 04/2015 in Bulgaria and Portugal, and between weeks 05/2015 and 08/2015 in most central European countries.
Summary of the influenza 2012–2013 season in the WHO European region
The 2012–2013 influenza season was of a slightly longer duration than the 2011–2012 season, starting around week 48/2012, peaking around week 5/2013 and lasting until week 16/2013.
Summary of the influenza 2016–2017 season in Europe
The influenza season 2016–2017 has now come to an end in Europe. In week 17/2017, all EU/EEA countries reported low influenza activity and the positivity rate (proportion of influenza virus positives among all tested specimens) falling below the 10% benchmark to 9.9%. For the previous six weeks, almost all EU/EEA countries had reported low influenza activity.
Infographic: How do antivirals treat and protect against influenza?
This ECDC infographic explains how antivirals treat and protect against influenza. The recommendations to treat patients with severe influenza are based on the evidence from randomised controlled trials, observational studies, extrapolation from studies, and a generally benign safety profile of these medicines.
Weekly influenza update, week 16, April 2018
In collaboration with WHO Regional Office for Europe, ECDC monitors and reports on influenza activity in Europe on a weekly basis throughout the flu season.