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 | 117875 | 7.6 | 359750 | 3.5 | 566939 | 1.6 | 322863 | 1.1 | 425427 | 0.9 |
| 202341 | 120032 | 8.1 | 351722 | 3.6 | 567626 | 1.8 | 327795 | 1.2 | 432363 | 0.9 |
| 202342 | 120798 | 8.7 | 354266 | 3.9 | 563007 | 1.8 | 323009 | 1.3 | 432091 | 1.1 |
| 202343 | 126550 | 9.0 | 362038 | 4.2 | 567495 | 2.0 | 326463 | 1.4 | 435205 | 1.2 |
| 202344 | 126850 | 9.3 | 360460 | 4.7 | 554042 | 2.2 | 316970 | 1.5 | 423847 | 1.3 |
| 202345 | 138368 | 10.4 | 371507 | 5.4 | 574604 | 2.5 | 328097 | 1.7 | 434800 | 1.4 |
| 202346 | 136542 | 10.8 | 361832 | 5.7 | 562688 | 2.8 | 320294 | 1.9 | 431058 | 1.5 |
| 202347 | 137905 | 11.1 | 311457 | 5.9 | 512034 | 2.9 | 291289 | 2.1 | 402575 | 1.6 |
| 202348 | 133189 | 11.1 | 343194 | 5.7 | 567579 | 3.6 | 320854 | 2.5 | 436299 | 2.0 |