Important update: Healthcare facilities
CDC has updated select ways to operate healthcare systems effectively in response to COVID-19 vaccination. Learn more
UPDATE
Given new evidence on the B.1.617.2 (Delta) variant, CDC has updated the guidance for fully vaccinated people. CDC recommends universal indoor masking for all teachers, staff, students, and visitors to K-12 schools, regardless of vaccination status. Children should return to full-time in-person learning in the fall with layered prevention strategies in place.
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The White House announced that vaccines will be required for international travelers coming into the United States, with an effective date of November 8, 2021. For purposes of entry into the United States, vaccines accepted will include FDA approved or authorized and WHO Emergency Use Listing vaccines. More information is available here.
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Travel requirements to enter the United States are changing, starting November 8, 2021. More information is available here.
COVIDView: A Weekly Surveillance Summary of U.S. COVID-19 Activity

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 17, 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 – July 11, 2020
Data as of July 16, 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 2,724 5,110 8,300 22,389 10,823 6,453 53,075 851,250 6.2 4.9
202014 2,679 2,363 4,856 14,952 8,687 5,371 36,229 747,707 4.8 3.8
202015 2,679 1,462 3,397 9,982 6,033 4,007 24,881 714,868 3.5 2.8
202016 2,659 1,034 2,632 7,429 4,176 2,918 18,189 705,527 2.6 2.1
202017 2,642 894 2,291 6,329 3,282 2,287 15,083 746,263 2.0 1.7
202018 2,611 850 2,100 5,279 2,663 1,887 12,779 786,203 1.6 1.4
202019 2,598 706 1,878 4,586 2,235 1,614 11,019 812,354 1.4 1.2
202020 2,588 786 1,972 4,118 2,161 1,436 10,473 843,513 1.2 1.1
202021 2,911 891 2,214 4,447 2,192 1,603 11,347 1,051,450 1.1 1.0
202022 2,889 793 1,880 3,560 1,866 1,445 9,544 1,071,596 .9 .9
202023 2,861 791 1,956 3,423 1,689 1,382 9,241 1,121,309 .8 .8
202024 2,826 872 2,115 3,417 1,707 1,354 9,465 1,158,524 .8 .9
202025 2,849 992 2,653 4,668 1,959 1,442 11,714 1,228,490 1.0 .9
202026 2,768 1,185 3,443 6,169 2,611 1,868 15,276 1,260,056 1.2 1.2
202027 2,702 1,334 3,845 6,872 3,139 2,152 17,342 1,245,916 1.4 1.3
202028 2,622 1,445 3,936 7,790 3,653 2,542 19,366 1,269,159 1.5 1.4
Totals 1,895,790 51,648,945

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