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
2025401133095.33814132.36555401.23807740.85470680.6
2025411141565.33714512.36391461.23750540.85411680.6
2025421134165.73640742.46320441.33717340.85403390.6
2025431139605.93677592.56321321.33705190.95417020.6
2025441085316.33505172.86077341.43577630.95266310.6