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 0
Belgium 0
Portugal 2364
Italy 5484
Great Britain 0
Sweden 3559
Germany 0
Austria 0
Switzerland 2650
France 9356
Spain 1063
Ireland 262
Denmark 37780
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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ILI Case Definitions

ILI Case Definitions

Based on the weekly user survey, the influenzanet software uses the following case definition for influenza-like illness (ILI) recommended by the European Centre for Disease Control (ECDC).

This ILIecdc definition is:

(1) Sudden onset of symptoms

(2) At least 1 of: Fever or feverishness (chills); Malaise; Headache, Muscle pain

(3) At least 1 of: Cough, Sore throat, Shortness of breath

For more information on our case definitions, follow this link.

Jan. 5, 2014, 6:25 a.m.