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 | 359199 | 3.5 | 566270 | 1.6 | 322463 | 1.1 | 425033 | 0.9 |
| 202341 | 119755 | 8.1 | 351126 | 3.6 | 566994 | 1.8 | 327417 | 1.2 | 431968 | 0.9 |
| 202342 | 120641 | 8.7 | 354049 | 3.9 | 562997 | 1.8 | 323008 | 1.3 | 432091 | 1.1 |
| 202343 | 126359 | 9.0 | 361762 | 4.2 | 567477 | 2.0 | 326457 | 1.4 | 435191 | 1.2 |
| 202344 | 126590 | 9.3 | 360115 | 4.7 | 553995 | 2.2 | 316946 | 1.5 | 423797 | 1.3 |
| 202345 | 137891 | 10.4 | 370397 | 5.4 | 572957 | 2.5 | 326366 | 1.7 | 432415 | 1.4 |
| 202346 | 133809 | 10.8 | 356262 | 5.7 | 558711 | 2.8 | 317569 | 1.9 | 428016 | 1.5 |