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U.S. Outpatient Influenza-like Illness Surveillance Network (ILINet): Overall Percentage of Visits for ILI

U.S. Outpatient Influenza-like Illness Surveillance Network (ILINet): Overall Percentage of Visits for ILI
Updated July 24, 2020

U.S. Outpatient Influenza-like Illness Surveillance Network (ILINet): Overall Percentage of Visits for ILI
September 29, 2019 – July 18, 2020
Data as of July 23, 2020
National (Baseline: 2.4%)
CDC Week # Sites Reporting ILI 0-4 years ILI 5-24 years ILI 25-49 years ILI 50-64 years ILI 65 years and older Total ILI Total Patient Visits % Unweighted ILI % Weighted ILI
201940 2,910 6,218 7,658 4,827 1,764 1,448 21,915 1,457,610 1.5 1.5
201941 2,941 6,550 7,638 5,148 2,015 1,603 22,954 1,436,120 1.6 1.6
201942 2,965 7,287 8,292 5,548 2,110 1,649 24,886 1,430,304 1.7 1.7
201943 2,996 7,892 9,349 6,080 2,305 1,793 27,419 1,473,202 1.9 1.8
201944 3,005 8,658 10,068 6,143 2,279 1,762 28,910 1,435,369 2.0 2.0
201945 3,020 10,552 12,551 7,180 2,453 1,843 34,579 1,462,498 2.4 2.4
201946 2,989 11,446 13,670 7,905 2,741 1,969 37,731 1,426,339 2.6 2.6
201947 2,985 12,714 17,056 9,138 3,100 2,148 44,156 1,484,315 3.0 2.9
201948 2,992 14,442 14,821 9,209 3,199 2,371 44,042 1,275,141 3.5 3.4
201949 2,994 13,852 16,397 11,946 3,929 2,779 48,903 1,475,691 3.3 3.3
201950 2,956 14,727 21,876 12,820 4,112 2,903 56,438 1,458,041 3.9 3.9
201951 2,924 17,997 29,180 16,225 4,834 3,349 71,585 1,423,688 5.0 5.1
201952 2,915 24,094 34,001 24,612 7,637 5,401 95,745 1,338,209 7.2 7.1
202001 2,968 21,628 23,417 27,655 9,208 6,881 88,789 1,427,710 6.2 5.9
202002 3,000 15,568 22,756 23,632 8,196 5,464 75,616 1,491,843 5.1 4.9
202003 2,990 16,551 29,633 21,403 7,385 4,729 79,701 1,487,159 5.4 5.3
202004 2,993 18,576 35,284 23,657 7,973 4,670 90,160 1,496,776 6.0 6.1
202005 2,990 20,303 44,123 28,887 9,525 5,473 108,311 1,575,632 6.9 6.7
202006 2,999 20,268 45,522 29,821 10,048 5,706 111,365 1,571,105 7.1 6.8
202007 2,962 17,388 36,906 26,426 9,229 5,457 95,406 1,533,340 6.2 6.1
202008 2,978 15,328 28,536 23,189 8,317 5,187 80,557 1,433,272 5.6 5.5
202009 2,938 13,783 25,467 22,111 8,270 5,108 74,739 1,464,236 5.1 5.1
202010 2,906 13,894 26,408 23,906 8,889 5,695 78,792 1,489,152 5.3 5.3
202011 2,833 14,132 27,748 29,657 11,328 6,695 89,560 1,421,540 6.3 5.7
202012 2,795 10,752 17,505 30,798 12,470 6,983 78,508 1,066,468 7.4 6.4
202013 2,725 5,112 8,303 22,395 10,824 6,457 53,091 851,548 6.2 4.9
202014 2,685 2,365 4,860 14,963 8,694 5,380 36,262 750,510 4.8 3.8
202015 2,684 1,464 3,405 9,991 6,039 4,014 24,913 717,767 3.5 2.8
202016 2,663 1,039 2,647 7,431 4,180 2,925 18,222 707,855 2.6 2.1
202017 2,645 895 2,296 6,340 3,288 2,293 15,112 748,335 2.0 1.7
202018 2,615 851 2,106 5,290 2,670 1,894 12,811 788,564 1.6 1.4
202019 2,603 707 1,887 4,594 2,241 1,620 11,049 815,152 1.4 1.2
202020 2,591 788 1,975 4,126 2,172 1,445 10,506 843,913 1.2 1.1
202021 2,914 894 2,214 4,454 2,201 1,616 11,379 1,051,917 1.1 1.0
202022 2,893 796 1,885 3,564 1,871 1,445 9,561 1,072,818 .9 .9
202023 2,865 792 1,957 3,429 1,697 1,402 9,277 1,122,909 .8 .8
202024 2,833 875 2,123 3,421 1,716 1,371 9,506 1,161,053 .8 .9
202025 2,862 995 2,657 4,680 1,976 1,460 11,768 1,232,640 1.0 .9
202026 2,811 1,194 3,463 6,203 2,629 1,893 15,382 1,270,713 1.2 1.2
202027 2,788 1,361 3,910 6,972 3,206 2,214 17,663 1,269,217 1.4 1.3
202028 2,751 1,514 4,028 7,927 3,731 2,604 19,804 1,322,920 1.5 1.4
202029 2,660 1,613 4,004 7,437 3,490 2,379 18,923 1,282,177 1.5 1.4
Totals 1,915,996 53,044,768

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