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 31, 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 25, 2020
Data as of July 30, 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 3,353 2,150,174 23,058 1.1 19,683 0.9
201941 3,351 2,103,938 23,963 1.1 20,502 1.0
201942 3,354 2,094,405 26,294 1.3 22,521 1.1
201943 3,354 2,117,050 27,413 1.3 23,816 1.1
201944 3,368 2,074,144 29,137 1.4 25,463 1.2
201945 3,413 2,135,361 33,791 1.6 29,984 1.4
201946 3,421 2,131,646 36,291 1.7 32,653 1.5
201947 3,435 2,219,670 39,329 1.8 36,283 1.6
201948 3,441 2,108,241 43,120 2.0 39,978 1.9
201949 3,443 2,235,907 41,889 1.9 37,920 1.7
201950 3,445 2,249,975 44,113 2.0 42,720 1.9
201951 3,447 2,233,777 49,789 2.2 51,156 2.3
201952 3,452 2,341,764 64,531 2.8 68,923 2.9
202001 3,475 2,420,787 59,064 2.4 57,994 2.4
202002 3,478 2,306,186 43,677 1.9 43,009 1.9
202003 3,477 2,276,778 42,652 1.9 45,042 2.0
202004 3,496 2,274,407 46,349 2.0 50,043 2.2
202005 3,511 2,367,789 54,372 2.3 60,237 2.5
202006 3,511 2,356,109 53,543 2.3 59,594 2.5
202007 3,534 2,292,215 47,757 2.1 51,395 2.2
202008 3,532 2,277,641 44,343 1.9 46,433 2.0
202009 3,537 2,240,090 41,157 1.8 42,230 1.9
202010 3,553 2,270,357 49,865 2.2 50,388 2.2
202011 3,559 2,256,134 77,302 3.4 72,073 3.2
202012 3,556 1,812,309 108,462 6.0 85,177 4.7
202013 3,571 1,456,463 100,177 6.9 62,797 4.3
202014 3,569 1,267,654 87,634 6.9 44,155 3.5
202015 3,565 1,205,134 73,236 6.1 30,376 2.5
202016 3,573 1,183,795 59,535 5.0 21,528 1.8
202017 3,563 1,253,744 53,629 4.3 17,631 1.4
202018 3,571 1,309,666 49,244 3.8 15,027 1.1
202019 3,570 1,371,690 43,134 3.1 12,690 0.9
202020 3,571 1,421,695 39,564 2.8 11,904 0.8
202021 3,594 1,524,092 36,673 2.4 11,421 0.7
202022 3,613 1,616,887 32,900 2.0 10,147 0.6
202023 3,618 1,666,814 30,314 1.8 9,912 0.6
202024 3,618 1,742,004 32,534 1.9 10,671 0.6
202025 3,623 1,786,470 41,512 2.3 13,576 0.8
202026 3,636 1,880,063 57,460 3.1 17,596 0.9
202027 3,636 1,884,172 71,380 3.8 19,852 1.1
202028 3,626 1,979,006 80,406 4.1 21,337 1.1
202029 3,627 1,937,648 75,310 3.9 19,911 1.0
202030 3,619 1,856,235 57,283 3.1 16,192 0.9
Total 83,690,086 2,173,186 1,481,940