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The specific goal of influenza surveillance is to provide timely and high-quality data and viral isolates.

The levels of influenza activity in European countries reported by EISN members during the influenza season are based on three assessments: An indicator of the overall intensity of influenza activity in the country, An indicator of the geographical spread of influenza in the country, An indicator of trend in ILI/ARI sentinel consultations in the country compared to the previous week.

Latest surveillance reports and disease data on seasonal influenza; Flu News Europe, Influenza virus characterisation reports, ECDC Surveillance Atlas, Annual Epidemiological Reports.

Weekly reports on influenza activity in Europe throughout the flu season are available as Flu News Europe reports and weekly infographic.

The influenza virus characterisation reports give an overview of circulating influenza viruses in Europe. They provide details on the current vaccine strains, summarise the development of the viruses since the last report, and closely follow the main developments for the ongoing influenza season.

This disease surveillance report presents an overview of the epidemiological situation for communicable diseases and related health issues that are under European Union (EU) and European Economic Area (EEA) surveillance.

Over the past half century a global system, the Global Influenza Surveillance Network (GISN) has grown up under WHO. Through GISN virological and epidemiological surveillance for human influenza is undertaken internationally.

List of external links to national and global influenza surveillance systems and reports.

European Influenza Surveillance Network (EISN) and European Reference Laboratory Network for Human Influenza (ERLI-Net).

ECDC publications and peer-reviewed articles on influenza surveillance.