Influenzanet is a system to monitor the activity of influenza-like-illness (ILI) with the aid of volunteers via the internet

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Developing the framework for an epidemic forecast infrastructure.

The Seventh Framework Programme (FP7) bundles all research-related EU initiatives.

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Participating countries and volunteers:

The Netherlands 12264
Belgium 3995
Portugal 2149
Italy 4681
Great Britain 3516
Sweden 3559
Germany 216
Austria 560
Switzerland 1216
France 1
Spain 1013
Ireland 351
Denmark 2922
InfluenzaNet is a system to monitor the activity of influenza-like-illness (ILI) with the aid of volunteers via the internet. It has been operational in The Netherlands and Belgium (since 2003), Portugal (since 2005) and Italy (since 2008), and the current objective is to implement InfluenzaNet in more European countries.

In contrast with the traditional system of sentinel networks of mainly primary care physicians coordinated by the European Influenza Surveillance Scheme (EISS), InfluenzaNet obtains its data directly from the population. This creates a fast and flexible monitoring system whose uniformity allows for direct comparison of ILI rates between countries.

Any resident of a country where InfluenzaNet is implemented can participate by completing an online application form, which contains various medical, geographic and behavioural questions. Participants are reminded weekly to report any symptoms they have experienced since their last visit. The incidence of ILI is determined on the basis of a uniform case definition.

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Live Map of Participant's ILI Activity

Below we map the reported levels of ILI activity from our participants around the country. The map shows a gradient from no reported ILI (blue) to very high ILI (red). Please note that caution should be used in interpreting the levels of ILI activity shown on the map, as the data may be based on small numbers. The latest HPSC Weekly Influenza Surveillance Report can also be viewed online.

Maps are automatically updated every hour, and new participants are most welcome: registration only takes a few clicks!