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Table 2 Influenza-like Illness (ILI) definitions for Influenzanet, FluTracking, Reporta and Flu Near You/SaludBoricua

From: Public health for the people: participatory infectious disease surveillance in the digital age

Participatory surveillance system Influenza-like illness definition
Influenzanet Sudden onset of symptoms AND at least one of the following: fever and/or chills, feeling tired or exhausted, headache, muscle pain; AND at least one of the following: cough, sore throat, shortness of breath
FluTracking Fever AND cough
Reporta Fever AND at least one of the following: cough or sore throat
Flu Near You/SaludBoricua Fever AND at least one of the following: cough or sore throat