Risk assessment for seasonal influenza, EU/EEA, 2017–2018
Since the 2009 influenza pandemic, ECDC has regularly produced early-season risk assessments for EU/EEA countries to inform national public health authorities of key features during the ongoing season. The main objectives of the early season risk assessment are to provide an early description of the epidemiological pattern of seasonal influenza in the first affected countries; to anticipate the progression of influenza activity and to assess the risk of reduced vaccine effectiveness and susceptibility to neuraminidase inhibitors.
First detections indicated circulation of A(H3N2) and B/Yamagata viruses. As the former subtype dominated last season, a high proportion of the population should be protected. However, the emergence of variant strains cannot be excluded and this would increase the likelihood of severe outcomes in the elderly.
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
Latest surveillance reports and disease data on seasonal influenza; Flu News Europe, Influenza virus characterisation reports, ECDC Surveillance Atlas, Annual Epidemiological Reports.Read more
Flu News Europe: Weekly influenza updates
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. The latest data is published in the report Flu News Europe.Read more
Risk assessments on influenza
Rapid risk/outbreaks assessment aim at supporting the countries and the European Commission in their preparedness and response to a public health threat. They provide a timely summary and risk assessment of a public health threat for EU/EEA countries related to a specific event. They also include potential options for response. As outbreaks or public health events develop, ECDC may issue updated risk assessments.Read more
Seasonal influenza vaccines
Influenza is a vaccine preventable disease and influenza vaccines have been available for use in Europe since the 1960s. A number of variants of the influenza viruses co-circulate each year. Immunity to the infecting influenza virus type develops following a natural influenza infection. However, there is little cross-immunity between influenza types/subtypes or lineages. This is why several influenza strains must be included into combination vaccines.Read more
Disease data from ECDC Surveillance Atlas for influenza
The Surveillance Atlas of Infectious Diseases is a tool that interacts with the latest available data about a number of infectious diseases. The interface allows users to interact and manipulate the data to produce a variety of tables and maps.Read more
Factsheet about seasonal influenza
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, tissues, etc. Additionally, aerosol transmission plays a part in influenza virus transmission.Read more