Data

When using these data please attribute it to Influenzanet as follows:
"Data Source: Influenzanet (http://www.influenzanet.eu)".

ILI time series

Files which list per country for every week the number of active participants and the number of ILI onsets, for up to four different ILI case definitions. These files can be used to create ILI incidence curves.

Download: Netherlands, Belgium, Portugal

Geographical spread

Files which list for each week, the total number of active participants and the number of ILI onsets are listed, grouped by (abbreviated) postal code of the participants. These files can be used to create maps to visualize the geographical spread of ILI.

Download: Netherlands, Belgium, Portugal

Full data sets (unified)

Files containing the full data set for each country, including all Intake questions and all Weekly symptoms' questions. The data is converted from the Original data, such that each country and season uses the same column names and values. This data is password protected.

Download: Netherlands, Belgium, Portugal

Full data sets (original)

Files containing the full data set for each country, in the original database format. The database format has changed over the seasons and could differ per country. Since season 2011/12, all Influenzanet countries use the same database format. If only data since 2011/12 is required, it is probably better to use these original data sets, whereas if also data from before 2011/12 is needed, it is more convenient to download the Unified data sets. This data is password protected.

Download: Netherlands, Belgium, Portugal

Restricted access

To obtain access to the more detailed Influenzanet data, please contact the national organisers of the Influenzanet systems. Any privacy sensitive information, such as email-addresses, will never be shared with third parties.

For scientists and researches who wishes to analyse data from multiple countries, please fill in the Data Application Form. Your application is subject to approval from the Influenzanet Science Committee, which aims to react within short notice to your request.

Other sources

Influenzanet uses data from various other sources.

  • ECDC: European Influenza Surveillance Network.
  • Google Flu Trends: ILI activity derived from Google search volumes.
  • NOAA: National Oceanic and Atmospheric Administration.
  • GeoNames: Geographical coordinates of postal codes.
  • Hong Kong NPI study: ILI symptoms and viral confirmation in household study.
Epiwork