Fig. 1
From: Model estimates of the burden of outpatient visits attributable to influenza in the United States
Attribution modelling showing excess office visits attributable to influenza A/H1N1 (purple), A/H3N2 (orange) and B (green) in 5–17 year olds (MarketScan Commercial Database), and influenza of all types (green) in 65–74 year olds (MarketScan Medicare Supplemental Database). The sum of the secular trend and RSV attribution is shown in blue; the solid lines represent the observed number of respiratory (broadly defined) visits