U.S. Outpatient Influenza-like Illness Surveillance Network (ILINet):
Percentage of Visits for ILI by Age Group Reported by A Subset of ILINet Providers
2023-2024 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 |
| 202340 | 117580 | 7.6 | 359195 | 3.5 | 566263 | 1.6 | 322462 | 1.1 | 425031 | 0.9 |
| 202341 | 119755 | 8.1 | 351116 | 3.6 | 566977 | 1.8 | 327404 | 1.2 | 431942 | 0.9 |
| 202342 | 120641 | 8.7 | 354025 | 3.9 | 562951 | 1.8 | 322975 | 1.3 | 432031 | 1.1 |
| 202343 | 126353 | 9.0 | 361686 | 4.2 | 567387 | 2.0 | 326380 | 1.4 | 435089 | 1.2 |
| 202344 | 124111 | 9.3 | 353449 | 4.7 | 546026 | 2.2 | 311753 | 1.5 | 417590 | 1.3 |