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

http://www.influenzanet.info/

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Developing the framework for an epidemic forecast infrastructure.
http://www.epiwork.eu/

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 1581
Italy 4838
Great Britain 0
Sweden 0
Germany 0
Austria 0
Switzerland 1350
France 6220
Spain 1029
Ireland 354
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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Epidemia versus Pandemia

Uma pandemia é uma epidemia em escala mundial.

No caso da gripe, as pandemias são fenómenos distintos das epidemias sazonais. Epidemias sazonais acontecem todos os invernos provocadas por um vírus ligeiramente modificado relativamente ao do ano anterior. Os vírus são, no entanto, do mesmo subtipo.

No caso de uma pandemia, uma versão completamente diferente do vírus emerge. O novo vírus pertence, neste caso, a um subtipo diferente. As pessoas não têm imunidade contra o vírus emergente e, como resultado, a taxa de mortalidade associada a uma pandemia é geralmente maior da que estamos habituados a associar à gripe sazonal.

Diferenças entre gripe sazonal e uma pandemia

Fonte: ECDC (imagem adaptada)

Diferenças entre gripe sazonal e uma pandemia: proporção normal de casos com e sem sintomas, hospitalização e morte.