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
2025401133105.33818362.36555491.23807790.85470830.6
2025411141575.33714602.36391531.23750570.85411770.6
2025421135025.73643732.46327271.33721700.85408490.6
2025431142525.83685402.56330601.33710430.95423610.6
2025441122376.33573882.86134131.43606940.95301140.6
2025451203756.83806523.46317091.63674841.05373110.7
2025461196407.03689633.76290311.73667101.15364590.8
2025471207607.83753764.36362921.93726501.25473450.9
2025481173909.23089285.25544392.13179011.54765061.1
2025491188559.33513895.26320082.63686991.85456201.3
20255011988811.13642277.56216773.03639112.05402101.5