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 | 359197 | 3.5 | 566265 | 1.6 | 322462 | 1.1 | 425031 | 0.9 |
| 202341 | 119755 | 8.1 | 351125 | 3.6 | 566993 | 1.8 | 327417 | 1.2 | 431965 | 0.9 |
| 202342 | 120641 | 8.7 | 354043 | 3.9 | 562981 | 1.8 | 323000 | 1.3 | 432071 | 1.1 |
| 202343 | 126358 | 9.0 | 361724 | 4.2 | 567446 | 2.0 | 326440 | 1.4 | 435168 | 1.2 |
| 202344 | 126587 | 9.3 | 360071 | 4.7 | 553954 | 2.2 | 316920 | 1.5 | 423757 | 1.2 |
| 202345 | 136483 | 10.4 | 368282 | 5.4 | 571994 | 2.5 | 325491 | 1.7 | 432133 | 1.4 |