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 | 359870 | 3.5 | 566951 | 1.6 | 322864 | 1.1 | 425429 | 0.9 |
| 202341 | 120032 | 8.1 | 351844 | 3.6 | 567638 | 1.8 | 327798 | 1.2 | 432364 | 0.9 |
| 202342 | 120799 | 8.7 | 354581 | 3.9 | 563062 | 1.8 | 323017 | 1.3 | 432095 | 1.1 |
| 202343 | 126551 | 9.0 | 362174 | 4.2 | 567524 | 2.0 | 326472 | 1.4 | 435213 | 1.2 |
| 202344 | 126850 | 9.3 | 360774 | 4.7 | 554182 | 2.2 | 317003 | 1.5 | 423862 | 1.3 |
| 202345 | 138369 | 10.4 | 371647 | 5.4 | 574649 | 2.5 | 328107 | 1.7 | 434823 | 1.4 |
| 202346 | 136546 | 10.8 | 361935 | 5.7 | 562760 | 2.8 | 320336 | 1.9 | 431146 | 1.5 |
| 202347 | 137934 | 11.1 | 311658 | 5.9 | 512270 | 2.9 | 291409 | 2.1 | 402749 | 1.6 |
| 202348 | 140320 | 11.0 | 360439 | 5.7 | 592288 | 3.5 | 333834 | 2.5 | 453764 | 1.9 |
| 202349 | 136308 | 11.7 | 372850 | 6.9 | 585607 | 3.6 | 335868 | 2.7 | 449959 | 2.0 |
| 202350 | 140994 | 12.8 | 378699 | 8.7 | 584661 | 4.3 | 332707 | 3.1 | 443380 | 2.2 |
| 202351 | 147647 | 14.0 | 366035 | 10.3 | 589252 | 5.5 | 334825 | 4.0 | 453003 | 2.8 |
| 202352 | 142818 | 15.4 | 300862 | 9.8 | 554911 | 6.5 | 320862 | 4.9 | 460889 | 3.6 |