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 | 117779 | 7.6 | 359435 | 3.5 | 566271 | 1.6 | 322463 | 1.1 | 425032 | 0.9 |
| 202341 | 119939 | 8.1 | 351402 | 3.6 | 566995 | 1.8 | 327417 | 1.2 | 431968 | 0.9 |
| 202342 | 120798 | 8.7 | 354266 | 3.9 | 563004 | 1.8 | 323009 | 1.3 | 432093 | 1.1 |
| 202343 | 126550 | 9.0 | 362036 | 4.2 | 567492 | 2.0 | 326463 | 1.4 | 435205 | 1.2 |
| 202344 | 126794 | 9.3 | 360350 | 4.7 | 554019 | 2.2 | 316956 | 1.5 | 423818 | 1.3 |
| 202345 | 137936 | 10.4 | 370266 | 5.4 | 572860 | 2.5 | 326253 | 1.7 | 432475 | 1.4 |
| 202346 | 136117 | 10.9 | 360636 | 5.7 | 560939 | 2.8 | 318579 | 1.9 | 428917 | 1.5 |
| 202347 | 125626 | 11.0 | 283137 | 5.9 | 472497 | 2.9 | 269848 | 2.1 | 376022 | 1.6 |