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.
UPDATE
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.
UPDATE
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

Percentage of Visits for ILI by Age Group Reported by A Subset of ILINet Providers

Percentage of Visits for ILI by Age Group Reported by A Subset of ILINet Providers
Updated July 17, 2020
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).

U.S. Outpatient Influenza-like Illness Surveillance Network (ILINet):
Percentage of Visits for ILI by Age Group Reported by A Subset of ILINet Providers
September 29, 2019 – July 11, 2020
Data as of July 16, 2020
Week 0-4 years 5-24 years 25-49 years 50-64 years 65+ years
Total Visits % ILI Total Visits % ILI Total Visits % ILI Total Visits % ILI Total Visits % ILI
201940 56,378 6.0 172,455 2.4 249,626 1.2 135,083 0.7 150,777 0.5
201941 58,756 6.2 171,416 2.4 247,615 1.3 136,748 0.8 154,739 0.6
201942 59,955 6.8 166,771 2.7 242,462 1.4 135,242 0.9 154,467 0.6
201943 61,083 7.1 176,083 2.9 249,728 1.5 139,263 0.9 158,008 0.6
201944 63,508 7.4 171,590 3.1 245,529 1.5 133,406 0.9 151,707 0.6
201945 66,204 8.4 173,895 3.7 243,114 1.7 133,001 1.0 151,789 0.6
201946 67,262 9.3 170,079 4.2 240,647 2.0 131,390 1.2 148,014 0.7
201947 73,302 9.7 176,988 5.0 253,263 2.2 138,747 1.3 153,867 0.8
201948 74,322 11.2 152,634 5.3 231,569 2.4 126,930 1.4 148,061 0.9
201949 73,243 10.6 174,956 4.9 255,328 2.8 136,785 1.6 155,770 1.0
201950 76,032 10.8 183,387 6.1 254,750 3.0 137,775 1.7 155,497 1.0
201951 81,316 12.4 183,153 8.4 251,696 3.7 135,039 1.9 155,357 1.2
201952 90,267 15.9 170,131 11.5 258,507 5.9 140,740 3.2 165,096 2.0
202001 86,848 14.7 163,050 8.3 280,118 5.9 149,437 3.5 170,051 2.4
202002 72,578 12.3 173,512 7.0 273,733 5.1 147,637 3.1 165,487 1.9
202003 73,582 12.7 183,804 8.1 266,469 4.8 143,676 2.9 160,282 1.7
202004 75,754 13.8 186,519 9.4 266,198 5.3 142,592 3.2 158,033 1.7
202005 78,982 14.5 209,016 10.5 277,969 6.3 145,238 3.9 160,551 2.0
202006 78,662 15.0 208,469 11.1 275,995 6.8 146,837 4.1 159,751 2.1
202007 75,680 13.5 197,114 9.7 274,401 6.1 148,601 3.8 163,078 2.0
202008 68,486 13.1 174,724 8.6 251,090 5.7 137,025 3.7 151,611 2.1
202009 68,115 11.8 180,254 7.4 261,852 5.4 142,603 3.6 158,538 2.0
202010 69,431 11.7 188,935 7.3 271,080 5.5 147,531 3.7 162,779 2.2
202011 66,743 12.4 186,294 8.4 275,819 6.7 144,892 4.9 151,357 2.7
202012 45,799 13.9 118,536 8.6 230,923 7.7 116,630 6.2 110,228 3.7
202013 29,777 10.2 83,806 5.7 194,727 6.4 99,895 5.8 95,045 3.8
202014 21,724 6.2 70,725 4.0 170,094 5.0 90,904 5.2 87,738 3.3
202015 19,836 4.1 67,398 2.9 157,592 3.7 88,624 3.8 89,348 2.5
202016 19,216 3.0 65,660 2.2 151,186 2.9 85,498 2.8 90,184 1.8
202017 20,370 2.4 71,369 1.8 161,677 2.3 92,174 2.1 98,125 1.4
202018 21,325 2.1 77,282 1.6 168,388 1.9 94,363 1.6 102,343 1.1
202019 22,772 1.7 82,298 1.3 175,881 1.5 100,549 1.3 108,156 0.9
202020 24,050 1.8 86,775 1.3 180,051 1.3 101,412 1.2 111,596 0.7
202021 32,450 1.7 118,649 1.1 254,028 1.1 144,151 0.9 161,828 0.6
202022 33,148 1.5 127,706 1.0 261,410 0.9 147,088 0.8 165,553 0.6
202023 34,725 1.5 134,839 0.9 266,745 0.8 150,523 0.7 170,301 0.5
202024 37,053 1.5 143,567 1.0 283,105 0.8 157,280 0.7 175,642 0.5
202025 39,534 1.6 155,682 1.2 299,884 1.1 164,856 0.8 182,255 0.6
202026 40,939 2.0 168,363 1.5 324,728 1.4 173,708 1.1 187,576 0.7
202027 41,086 2.3 169,355 1.7 330,681 1.6 174,159 1.4 187,556 0.9
202028 41,249 2.7 173,948 1.7 344,700 1.7 184,541 1.5 195,907 1.0
Totals 2,241,542 6,211,187 10,154,358 5,522,573 6,084,048