U.S. Outpatient Influenza-like Illness Surveillance Network (ILINet):
Percentage of Visits for ILI by Age Group Reported by A Subset of ILINet Providers
2020-2021 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 |
201940 | 56297 | 6.0 | 172204 | 2.4 | 249207 | 1.2 | 134853 | 0.7 | 150464 | 0.5 |
201941 | 58682 | 6.2 | 171190 | 2.4 | 247201 | 1.3 | 136578 | 0.8 | 154517 | 0.6 |
201942 | 59887 | 6.8 | 166497 | 2.7 | 242025 | 1.4 | 134987 | 0.9 | 154145 | 0.6 |
201943 | 61051 | 7.1 | 175250 | 2.9 | 249407 | 1.5 | 139182 | 0.9 | 157967 | 0.6 |
201944 | 63453 | 7.4 | 170789 | 3.1 | 245143 | 1.5 | 133273 | 0.9 | 151569 | 0.6 |
201945 | 66166 | 8.4 | 172988 | 3.7 | 242759 | 1.7 | 132902 | 1.0 | 151719 | 0.6 |
201946 | 67257 | 9.3 | 170055 | 4.2 | 240611 | 2.0 | 131376 | 1.2 | 147996 | 0.7 |
201947 | 73294 | 9.7 | 176962 | 5.0 | 253239 | 2.2 | 138734 | 1.3 | 153845 | 0.8 |
201948 | 74319 | 11.2 | 152325 | 5.3 | 231495 | 2.4 | 126916 | 1.4 | 148049 | 0.9 |
201949 | 73243 | 10.6 | 174304 | 4.9 | 255214 | 2.8 | 136783 | 1.6 | 155770 | 1.0 |
201950 | 76032 | 10.8 | 183387 | 6.1 | 254750 | 3.0 | 137775 | 1.7 | 155497 | 1.0 |
201951 | 81306 | 12.4 | 183096 | 8.4 | 251594 | 3.7 | 135006 | 1.9 | 155329 | 1.2 |
201952 | 90267 | 15.9 | 170131 | 11.5 | 258507 | 5.9 | 140740 | 3.2 | 165096 | 2.0 |
202001 | 86269 | 14.7 | 162051 | 8.4 | 280118 | 5.9 | 149437 | 3.5 | 170051 | 2.4 |
202002 | 72528 | 12.3 | 173167 | 7.0 | 273733 | 5.1 | 147637 | 3.1 | 165487 | 1.9 |
202003 | 73278 | 12.8 | 183144 | 8.1 | 266393 | 4.8 | 143617 | 2.9 | 160122 | 1.7 |
202004 | 75510 | 13.8 | 185890 | 9.4 | 266198 | 5.3 | 142592 | 3.2 | 158033 | 1.7 |
202005 | 78728 | 14.6 | 208281 | 10.5 | 277969 | 6.3 | 145238 | 3.9 | 160551 | 2.0 |
202006 | 78433 | 15.0 | 207872 | 11.2 | 275995 | 6.8 | 146837 | 4.1 | 159751 | 2.1 |
202007 | 75421 | 13.6 | 196597 | 9.7 | 274401 | 6.1 | 148601 | 3.8 | 163078 | 2.0 |
202008 | 68165 | 13.1 | 174065 | 8.6 | 251090 | 5.7 | 137025 | 3.7 | 151611 | 2.1 |
202009 | 67748 | 11.8 | 179557 | 7.4 | 261852 | 5.4 | 142603 | 3.6 | 158538 | 2.0 |
202010 | 69200 | 11.8 | 188151 | 7.4 | 271080 | 5.5 | 147531 | 3.7 | 162779 | 2.2 |
202011 | 66459 | 12.4 | 185525 | 8.4 | 275819 | 6.7 | 144892 | 4.9 | 151357 | 2.7 |
202012 | 45496 | 13.9 | 117833 | 8.6 | 230923 | 7.7 | 116630 | 6.2 | 110228 | 3.7 |
202013 | 29497 | 10.2 | 83263 | 5.7 | 194727 | 6.4 | 99895 | 5.8 | 95045 | 3.8 |
202014 | 21524 | 6.2 | 70454 | 4.0 | 170094 | 5.0 | 90904 | 5.2 | 87738 | 3.3 |
202015 | 19626 | 4.2 | 67029 | 2.9 | 157592 | 3.7 | 88624 | 3.8 | 89348 | 2.5 |
202016 | 19285 | 3.0 | 65768 | 2.2 | 151186 | 2.9 | 85498 | 2.8 | 90184 | 1.8 |
202017 | 20399 | 2.4 | 71484 | 1.8 | 161677 | 2.3 | 92174 | 2.1 | 98125 | 1.4 |
202018 | 21371 | 2.1 | 77494 | 1.6 | 168388 | 1.9 | 94363 | 1.6 | 102343 | 1.1 |
202019 | 22800 | 1.7 | 82393 | 1.3 | 175881 | 1.5 | 100549 | 1.3 | 108157 | 0.9 |
202020 | 24106 | 1.8 | 86757 | 1.3 | 180051 | 1.3 | 101412 | 1.2 | 111596 | 0.7 |
202021 | 32398 | 1.7 | 118475 | 1.1 | 253165 | 1.1 | 143512 | 0.9 | 160760 | 0.6 |
202022 | 33084 | 1.5 | 127586 | 1.0 | 261410 | 0.9 | 147088 | 0.8 | 165555 | 0.6 |
202023 | 34808 | 1.5 | 135163 | 0.9 | 266792 | 0.8 | 150549 | 0.7 | 170328 | 0.5 |
202024 | 37044 | 1.5 | 143642 | 1.0 | 283178 | 0.8 | 157320 | 0.7 | 175680 | 0.5 |
202025 | 39583 | 1.6 | 155793 | 1.2 | 299949 | 1.1 | 164899 | 0.8 | 182285 | 0.6 |
202026 | 41031 | 2.0 | 168533 | 1.5 | 324817 | 1.4 | 173760 | 1.1 | 187627 | 0.7 |
202027 | 41493 | 2.4 | 171009 | 1.7 | 333850 | 1.6 | 175859 | 1.4 | 189946 | 0.9 |
202028 | 44881 | 2.5 | 181770 | 1.7 | 349014 | 1.7 | 186843 | 1.5 | 198685 | 1.0 |
202029 | 43936 | 2.6 | 175297 | 1.6 | 336580 | 1.6 | 181333 | 1.4 | 192544 | 0.9 |
202030 | 44940 | 2.6 | 180764 | 1.3 | 344422 | 1.3 | 185320 | 1.2 | 200228 | 0.8 |
202031 | 44777 | 2.4 | 178239 | 1.3 | 339013 | 1.2 | 182977 | 1.0 | 199161 | 0.7 |
202032 | 44610 | 2.4 | 176062 | 1.3 | 332885 | 1.0 | 182411 | 0.9 | 201333 | 0.7 |
202033 | 45866 | 2.3 | 177487 | 1.2 | 334680 | 0.9 | 182964 | 0.8 | 201769 | 0.6 |
202034 | 46123 | 2.5 | 178932 | 1.2 | 331996 | 0.9 | 182124 | 0.7 | 203096 | 0.6 |
202035 | 46702 | 2.6 | 182372 | 1.5 | 331091 | 0.8 | 181040 | 0.7 | 201275 | 0.5 |
202036 | 46566 | 2.5 | 182738 | 1.3 | 325619 | 0.8 | 178295 | 0.6 | 202557 | 0.5 |
202037 | 48717 | 2.9 | 182666 | 1.5 | 326130 | 0.8 | 181396 | 0.7 | 201772 | 0.5 |
202038 | 48689 | 2.9 | 186417 | 1.3 | 324904 | 0.9 | 179326 | 0.7 | 204593 | 0.5 |
202039 | 46372 | 3.1 | 183257 | 1.5 | 322664 | 0.9 | 178451 | 0.7 | 206016 | 0.5 |
202040 | 55350 | 3.0 | 209820 | 1.5 | 363436 | 1.0 | 200932 | 0.8 | 231936 | 0.6 |
202041 | 55336 | 3.1 | 213101 | 1.6 | 382649 | 1.1 | 213396 | 1.0 | 244228 | 0.7 |
202042 | 53552 | 2.9 | 209189 | 1.5 | 379734 | 1.1 | 209554 | 0.8 | 235595 | 0.6 |
202043 | 52986 | 3.1 | 209479 | 1.6 | 381676 | 1.1 | 211460 | 0.9 | 237011 | 0.6 |
202044 | 52960 | 3.2 | 202446 | 1.6 | 373594 | 1.1 | 206314 | 0.9 | 234400 | 0.7 |
202045 | 54734 | 3.2 | 211608 | 1.8 | 382865 | 1.3 | 209699 | 1.1 | 237773 | 0.7 |
202046 | 55199 | 3.3 | 212794 | 1.7 | 400925 | 1.3 | 220826 | 1.2 | 244645 | 0.9 |
202047 | 54639 | 3.3 | 206192 | 1.7 | 388960 | 1.4 | 214380 | 1.3 | 239183 | 0.9 |
202048 | 50600 | 3.4 | 180050 | 1.7 | 360608 | 1.4 | 202142 | 1.4 | 234171 | 1.0 |
202049 | 51578 | 3.3 | 190563 | 1.7 | 378286 | 1.4 | 208494 | 1.3 | 239377 | 0.9 |
202050 | 51234 | 3.2 | 193416 | 1.5 | 380611 | 1.4 | 213691 | 1.3 | 246290 | 1.0 |
202051 | 51552 | 3.2 | 186997 | 1.5 | 373981 | 1.3 | 209762 | 1.3 | 243905 | 0.9 |
202052 | 48458 | 3.2 | 166226 | 1.5 | 348733 | 1.4 | 199634 | 1.4 | 237529 | 1.1 |
202053 | 50972 | 3.5 | 180694 | 1.6 | 381891 | 1.5 | 215114 | 1.5 | 248483 | 1.1 |
202101 | 52410 | 2.9 | 195593 | 1.6 | 396032 | 1.4 | 219234 | 1.4 | 250837 | 1.0 |
202102 | 53023 | 3.1 | 193658 | 1.4 | 374173 | 1.2 | 209201 | 1.2 | 247687 | 0.8 |
202103 | 55570 | 3.2 | 195469 | 1.4 | 373977 | 1.1 | 207832 | 1.1 | 239020 | 0.7 |
202104 | 54535 | 3.3 | 195636 | 1.4 | 367383 | 1.0 | 203608 | 1.0 | 232630 | 0.7 |
202105 | 54075 | 3.3 | 192882 | 1.3 | 360805 | 0.9 | 201251 | 0.8 | 232627 | 0.6 |
202106 | 54024 | 3.4 | 187555 | 1.3 | 352132 | 0.8 | 196403 | 0.7 | 227696 | 0.5 |
202107 | 52340 | 3.2 | 180364 | 1.2 | 343099 | 0.8 | 194113 | 0.7 | 223006 | 0.5 |
202108 | 58433 | 3.1 | 203984 | 1.1 | 373481 | 0.7 | 212187 | 0.6 | 244387 | 0.4 |
202109 | 60418 | 3.2 | 205343 | 1.1 | 369240 | 0.7 | 208770 | 0.6 | 244126 | 0.4 |
202110 | 63510 | 3.6 | 210027 | 1.2 | 370031 | 0.7 | 210163 | 0.6 | 245349 | 0.4 |
202111 | 63536 | 4.0 | 205668 | 1.2 | 369706 | 0.8 | 209231 | 0.6 | 244740 | 0.4 |
202112 | 68095 | 4.1 | 218798 | 1.2 | 382247 | 0.8 | 214810 | 0.7 | 251830 | 0.4 |
202113 | 70766 | 4.5 | 221949 | 1.3 | 390480 | 0.8 | 216813 | 0.7 | 251212 | 0.3 |
202114 | 75992 | 4.7 | 238328 | 1.4 | 409757 | 0.9 | 225806 | 0.7 | 259847 | 0.4 |
202115 | 77221 | 5.2 | 243500 | 1.4 | 423335 | 0.9 | 232496 | 0.7 | 261755 | 0.4 |
202116 | 77885 | 5.7 | 240850 | 1.5 | 412656 | 0.9 | 225668 | 0.7 | 256472 | 0.4 |
202117 | 82191 | 5.9 | 249388 | 1.6 | 415580 | 0.9 | 226647 | 0.6 | 259099 | 0.4 |
202118 | 80188 | 6.3 | 239874 | 1.6 | 403948 | 0.8 | 219931 | 0.6 | 251250 | 0.4 |
202119 | 81935 | 6.8 | 234574 | 1.7 | 395185 | 0.8 | 217220 | 0.6 | 251287 | 0.4 |
202120 | 87039 | 7.1 | 245445 | 1.6 | 414131 | 0.8 | 229617 | 0.5 | 266540 | 0.4 |
202121 | 87048 | 6.8 | 236794 | 1.6 | 411948 | 0.7 | 229129 | 0.5 | 269118 | 0.3 |
202122 | 87375 | 7.3 | 227154 | 1.6 | 402641 | 0.7 | 221841 | 0.5 | 260959 | 0.4 |
202123 | 88086 | 6.9 | 236407 | 1.5 | 419616 | 0.7 | 234203 | 0.5 | 272070 | 0.3 |
202124 | 89775 | 7.2 | 236069 | 1.5 | 418458 | 0.7 | 234317 | 0.5 | 270918 | 0.3 |
202125 | 89236 | 7.3 | 232367 | 1.5 | 416846 | 0.7 | 232361 | 0.5 | 268978 | 0.4 |
202126 | 90849 | 7.1 | 236094 | 1.5 | 423095 | 0.7 | 233781 | 0.5 | 273075 | 0.4 |
202127 | 93712 | 7.2 | 241028 | 1.7 | 435537 | 0.9 | 240142 | 0.7 | 276936 | 0.4 |
202128 | 96482 | 7.3 | 249417 | 1.8 | 453011 | 1.1 | 247980 | 0.8 | 281465 | 0.5 |
202129 | 100028 | 7.9 | 256673 | 2.1 | 462470 | 1.4 | 251705 | 0.9 | 283154 | 0.6 |
202130 | 103514 | 8.3 | 270527 | 2.4 | 478859 | 1.5 | 255677 | 1.1 | 283086 | 0.7 |
202131 | 101481 | 8.4 | 271510 | 2.5 | 481815 | 1.7 | 256873 | 1.3 | 281547 | 0.8 |
202132 | 99254 | 8.5 | 275534 | 2.6 | 488529 | 1.8 | 260600 | 1.4 | 281862 | 0.8 |
202133 | 97372 | 8.9 | 283514 | 3.0 | 477143 | 1.8 | 254821 | 1.5 | 274463 | 0.8 |