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 | 126550 | 9.0 | 362173 | 4.2 | 567515 | 2.0 | 326467 | 1.4 | 435211 | 1.2 |
| 202344 | 126850 | 9.3 | 360773 | 4.7 | 554175 | 2.2 | 317002 | 1.5 | 423859 | 1.3 |
| 202345 | 138369 | 10.4 | 371643 | 5.4 | 574638 | 2.5 | 328103 | 1.7 | 434818 | 1.4 |
| 202346 | 136546 | 10.8 | 361932 | 5.7 | 562755 | 2.8 | 320332 | 1.9 | 431140 | 1.5 |
| 202347 | 137924 | 11.1 | 311639 | 5.9 | 512223 | 2.9 | 291387 | 2.1 | 402715 | 1.6 |
| 202348 | 140317 | 11.0 | 360410 | 5.7 | 592224 | 3.5 | 333802 | 2.5 | 453701 | 1.9 |
| 202349 | 136308 | 11.7 | 372842 | 6.9 | 585559 | 3.6 | 335837 | 2.7 | 449874 | 2.0 |
| 202350 | 140973 | 12.8 | 378602 | 8.7 | 584511 | 4.3 | 332585 | 3.1 | 443143 | 2.2 |