Rodrigues, Ana PaulaSilva, Susana PereiraNunes, Baltazar2018-02-232018-02-232017-03-22http://hdl.handle.net/10400.18/5050Transmission indicator - Weekly Influenza-like illness (ILI) incidence rate (/10^5): National indicator; Availability of denominators (sum of users of each GP that reports ILI cases, even if zero, during the week); Stable surveillance system (since 1989); Timely (paper or web form); A subset of cases is laboratory tested for Influenza.engInfluenzaTransmission IndicatorPortugalGripeVigilânciaEstados de Saúde e de Doençaconference object