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During the study period, an average of 5,290,000 (range 4,542,000 - 6,299,000) ILI cases were estimated in Italy, corresponding to a cumulative average incidence of 9% (range 8% - 11%) in the Italian population. The highest estimated incidence was observed in children younger than 5 years (average of 23%, range 21% - 26%) and in adolescents (average of 15%, range 12% - 18%).
https://www.ijidonline.com/article/S1201-9712(19)30328-5/fulltext
