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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 Aug. 7, 2020
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This graph displays the percentage of visits for influenza-like-illness (ILI) by age group reported to CDC by the U.S. Outpatient Influenza-like Illness Surveillance Network (ILINet).
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U.S. Outpatient Influenza-like Illness Surveillance Network (ILINet): Overall Percentage of Visits for ILI
September 29, 2019 – August 1, 2020
Data as of August 6, 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 2
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 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 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 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 2,939 13,783 25,467 22,112 8,272 5,108 74,742 1,464,876 5.1 5.1
202010 2,907 13,894 26,409 23,906 8,889 5,696 78,794 1,489,801 5.3 5.3
202011 2,838 14,139 27,758 29,660 11,328 6,695 89,580 1,422,728 6.3 5.7
202012 2,800 10,761 17,514 30,804 12,471 6,984 78,534 1,067,566 7.4 6.4
202013 2,728 5,112 8,303 22,396 10,824 6,457 53,092 852,082 6.2 4.9
202014 2,689 2,365 4,860 14,964 8,695 5,380 36,264 750,727 4.8 3.8
202015 2,688 1,464 3,405 9,991 6,039 4,014 24,913 717,988 3.5 2.8
202016 2,667 1,040 2,648 7,433 4,181 2,925 18,227 708,145 2.6 2.1
202017 2,650 895 2,296 6,340 3,288 2,293 15,112 748,516 2 1.7
202018 2,621 852 2,106 5,292 2,670 1,894 12,814 788,918 1.6 1.4
202019 2,607 707 1,888 4,595 2,241 1,620 11,051 815,413 1.4 1.2
202020 2,596 788 1,975 4,126 2,172 1,446 10,507 844,242 1.2 1.1
202021 2,920 894 2,215 4,455 2,201 1,616 11,381 1,052,337 1.1 1
202022 2,899 796 1,885 3,564 1,871 1,445 9,561 1,073,124 0.9 0.9
202023 2,873 795 1,966 3,431 1,697 1,402 9,291 1,123,625 0.8 0.8
202024 2,843 876 2,133 3,437 1,717 1,372 9,535 1,162,483 0.8 0.9
202025 2,873 998 2,670 4,697 1,981 1,460 11,806 1,234,027 1 0.9
202026 2,827 1,204 3,469 6,220 2,634 1,894 15,421 1,274,574 1.2 1.2
202027 2,814 1,376 3,940 7,005 3,210 2,219 17,750 1,275,901 1.4 1.3
202028 2,784 1,523 4,043 7,959 3,743 2,611 19,879 1,330,555 1.5 1.4
202029 2,735 1,619 4,043 7,485 3,521 2,404 19,072 1,303,380 1.5 1.4
202030 2,755 1,575 3,457 6,034 3,038 2,103 16,207 1,301,410 1.2 1.2
202031 2,693 1,527 3,384 5,540 2,488 2,049 14,988 1,271,443 1.2 1.2
Totals 1,947,689 55,667,225

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