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Weekly Influenza Surveillance Overview (WISO)

The Weekly Influenza Surveillance Overview has been succeeded by Flu News Europe. For all the latest data on the current flu season, please visit


Weekly Influenza Surveillance Overview (WISO) is a surveillance report containing a clinical and virological overview of the current week and of the season. For each reporting country, clinical and virological data for the week are presented in a table. The table also links to a clinical and virological overview by country and season. The WISO is based on data available in TESSy when the snapshot is taken. These are preliminary data so the retrospective situation may change over time.

The authors are experts from the influenza team of ECDC. The bulletin text is reviewed by the European Reference Laboratory Network for Human Influenza (ERLI-Net) coordination team:  Adam Meijer, Rod Daniels, John McCauley and Maria Zambon. On behalf of the EISN members the bulletin text is reviewed by Maja Sočan (Inštitut za varovanje zdravja/National Institute of Public Health, Slovenia), Allison Waters (University College Dublin, Ireland) and Tyra Grove Krause (Statens Serum Institut, Copenhagen, Denmark).


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