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
2025401133095.33814162.36555481.23807780.85470810.6
2025411141565.33714582.36391511.23750570.85411740.6
2025421135025.73643722.46327241.33721690.85408470.6
2025431142525.83685332.56330521.33710420.95423590.6
2025441122356.33573852.86134011.43606920.95301060.6
2025451203746.83806403.46316841.63674751.05372990.7
2025461193607.03684203.76282991.73662891.15359710.8
2025471180877.73710524.26345751.93714881.25452940.9