U.S. Outpatient Influenza-like Illness Surveillance Network (ILINet):
Percentage of Visits for ILI by Age Group Reported by A Subset of ILINet Providers
2025-2026 Season
0-4 years 5-24 years 25-49 years 50-64 years 65+ years
Week Total Visits ILI Total Visits ILI Total Visits ILI Total Visits ILI Total Visits ILI
2025401133105.33814182.36555491.23807780.85470830.6
2025411141575.33714592.36391521.23750570.85411760.6
2025421135025.73643732.46327261.33721690.85408480.6
2025431142525.83685392.56330551.33710430.95423600.6
2025441122366.33573882.86134081.43606940.95301120.6
2025451203756.83806513.46317001.63674841.05373080.7
2025461195297.03686643.76283231.73663071.15359930.8
2025471206437.83746484.36355491.93722051.25468210.9
2025481172439.23084265.25536932.13174811.54760031.1