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

Emergency Department Visits Percentage of Visits for COVID-19-Like Illness (CLI) or Influenza-like Illness (ILI)

Emergency Department Visits Percentage of Visits for COVID-19-Like Illness (CLI) or Influenza-like Illness (ILI)
Updated July 24, 2020

National Syndromic Surveillance Program (NSSP): Emergency Department Visits Percentage of Visits for COVID-19-Like Illness (CLI) or Influenza-like Illness (ILI)
September 29, 2019 – July 18, 2020
Data as of July 23, 2020
National
Week Number of Facilities Reporting Total Number of ED Visits CLI Visits ILI Visits
Number Percent of Total Visits Number Percent of Total Visits
201940 3,349 2,150,061 23,057 1.1 19,682 0.9
201941 3,346 2,103,808 23,962 1.1 20,502 1.0
201942 3,350 2,094,299 26,293 1.3 22,521 1.1
201943 3,350 2,116,924 27,412 1.3 23,814 1.1
201944 3,363 2,074,020 29,133 1.4 25,462 1.2
201945 3,411 2,135,248 33,789 1.6 29,981 1.4
201946 3,418 2,131,538 36,290 1.7 32,653 1.5
201947 3,430 2,219,576 39,327 1.8 36,282 1.6
201948 3,437 2,108,109 43,117 2.0 39,976 1.9
201949 3,441 2,235,771 41,887 1.9 37,918 1.7
201950 3,441 2,249,858 44,112 2.0 42,719 1.9
201951 3,444 2,233,673 49,787 2.2 51,155 2.3
201952 3,448 2,341,588 64,531 2.8 68,923 2.9
202001 3,468 2,419,247 58,997 2.4 57,908 2.4
202002 3,473 2,303,975 43,608 1.9 42,905 1.9
202003 3,472 2,274,478 42,557 1.9 44,914 2.0
202004 3,489 2,272,163 46,252 2.0 49,924 2.2
202005 3,506 2,365,448 54,277 2.3 60,116 2.5
202006 3,506 2,353,960 53,461 2.3 59,468 2.5
202007 3,527 2,289,989 47,683 2.1 51,285 2.2
202008 3,527 2,275,301 44,267 1.9 46,330 2.0
202009 3,530 2,237,928 41,090 1.8 42,155 1.9
202010 3,548 2,268,046 49,794 2.2 50,293 2.2
202011 3,556 2,254,042 77,192 3.4 71,975 3.2
202012 3,551 1,810,543 108,365 6.0 85,086 4.7
202013 3,567 1,455,108 100,099 6.9 62,743 4.3
202014 3,565 1,266,578 87,568 6.9 44,113 3.5
202015 3,559 1,204,024 73,206 6.1 30,357 2.5
202016 3,570 1,182,493 59,467 5.0 21,502 1.8
202017 3,558 1,252,531 53,565 4.3 17,610 1.4
202018 3,566 1,308,453 49,178 3.8 15,007 1.1
202019 3,565 1,370,690 43,077 3.1 12,681 0.9
202020 3,567 1,420,150 39,501 2.8 11,888 0.8
202021 3,590 1,522,535 36,576 2.4 11,397 0.7
202022 3,609 1,615,971 32,869 2.0 10,139 0.6
202023 3,616 1,666,541 30,283 1.8 9,902 0.6
202024 3,616 1,741,624 32,487 1.9 10,664 0.6
202025 3,619 1,785,693 41,353 2.3 13,560 0.8
202026 3,633 1,879,083 57,159 3.0 17,566 0.9
202027 3,632 1,882,523 70,812 3.8 19,820 1.1
202028 3,622 1,977,260 78,934 4.0 21,310 1.1
202029 3,618 1,927,764 68,230 3.5 19,774 1.0
Total 81,778,614 2,104,604 1,463,980