U.S. Outpatient Influenza-like Illness Surveillance Network (ILINet):
Percentage of Visits for ILI by Age Group Reported by A Subset of ILINet Providers
2024-2025 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 |
| 202440 | 113860 | 6.1 | 388845 | 3.1 | 643705 | 1.4 | 374923 | 0.9 | 519257 | 0.6 |
| 202441 | 114317 | 6.4 | 380169 | 3.4 | 627874 | 1.4 | 369096 | 0.9 | 517638 | 0.6 |
| 202442 | 115525 | 6.5 | 387541 | 3.5 | 636984 | 1.5 | 371330 | 1.0 | 521589 | 0.7 |
| 202443 | 122020 | 7.0 | 413111 | 3.8 | 654784 | 1.6 | 382325 | 0.9 | 531559 | 0.7 |
| 202444 | 122159 | 7.5 | 408563 | 3.8 | 649870 | 1.7 | 375210 | 1.0 | 523942 | 0.7 |
| 202445 | 129079 | 8.1 | 412594 | 4.0 | 660722 | 1.8 | 378987 | 1.1 | 520514 | 0.8 |
| 202446 | 127500 | 8.7 | 395168 | 4.4 | 640347 | 2.0 | 368690 | 1.2 | 505850 | 0.8 |