Influenza Surveillance

During the flu season, which runs from October to May, an influenza report will be released every Thursday. The frequency of the report will reduce to fortnightly towards the end of the season in April and May. 

The Respiratory Virus Notification Data Hub displays influenza, RSV and COVID-19 weekly data and is updated weekly on Wednesdays.

HPSC in partnership with the Irish College of General Practitioners (ICGP) and the National Virus Reference Laboratory (NVRL) have established a network of 60 computerised general sentinel practices who report on a weekly basis the number of patients seen with influenza-like illness. Influenza-like illness is characterised by the sudden onset of symptoms with a temperature of 38°C or more, in the absence of any other disease, with at least two of the following: dry cough, headache, sore muscles and a sore throat.