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 Sept. 4, 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 – August 29, 2020
Data as of September 3, 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 3,371 2,150,826 23,062 1.1 19,688 0.9
201941 3,368 2,104,506 23,972 1.1 20,505 1.0
201942 3,372 2,095,003 26,305 1.3 22,527 1.1
201943 3,368 2,117,641 27,420 1.3 23,823 1.1
201944 3,389 2,074,724 29,144 1.4 25,469 1.2
201945 3,428 2,135,985 33,803 1.6 29,993 1.4
201946 3,435 2,132,299 36,305 1.7 32,662 1.5
201947 3,455 2,220,397 39,345 1.8 36,295 1.6
201948 3,454 2,108,973 43,135 2.0 39,991 1.9
201949 3,462 2,236,714 41,905 1.9 37,935 1.7
201950 3,463 2,250,853 44,143 2.0 42,753 1.9
201951 3,466 2,234,710 49,823 2.2 51,206 2.3
201952 3,466 2,343,492 64,609 2.8 69,038 2.9
202001 3,499 2,425,754 59,236 2.4 58,191 2.4
202002 3,504 2,313,052 43,834 1.9 43,178 1.9
202003 3,500 2,283,314 42,803 1.9 45,218 2.0
202004 3,526 2,280,934 46,511 2.0 50,235 2.2
202005 3,536 2,374,964 54,559 2.3 60,433 2.5
202006 3,543 2,363,322 53,735 2.3 59,813 2.5
202007 3,560 2,299,074 47,919 2.1 51,582 2.2
202008 3,558 2,284,664 44,504 1.9 46,622 2.0
202009 3,564 2,246,835 41,291 1.8 42,411 1.9
202010 3,577 2,277,519 50,042 2.2 50,598 2.2
202011 3,583 2,263,783 77,584 3.4 72,400 3.2
202012 3,580 1,818,516 108,899 6.0 85,502 4.7
202013 3,597 1,461,738 100,731 6.9 63,041 4.3
202014 3,596 1,272,326 88,283 6.9 44,319 3.5
202015 3,590 1,209,536 74,001 6.1 30,523 2.5
202016 3,591 1,188,056 60,312 5.1 21,691 1.8
202017 3,582 1,258,358 54,530 4.3 17,785 1.4
202018 3,587 1,314,647 50,225 3.8 15,179 1.2
202019 3,585 1,376,849 44,059 3.2 12,795 0.9
202020 3,588 1,426,802 40,503 2.8 11,973 0.8
202021 3,607 1,529,281 37,742 2.5 11,504 0.8
202022 3,631 1,622,361 34,032 2.1 10,198 0.6
202023 3,636 1,671,621 31,539 1.9 9,956 0.6
202024 3,635 1,746,767 33,943 1.9 10,706 0.6
202025 3,640 1,791,228 43,038 2.4 13,627 0.8
202026 3,652 1,885,407 59,372 3.1 17,663 0.9
202027 3,655 1,890,747 73,976 3.9 19,956 1.1
202028 3,649 1,986,156 84,284 4.2 21,461 1.1
202029 3,650 1,944,752 80,679 4.1 20,003 1.0
202030 3,647 1,907,248 71,594 3.8 16,884 0.9
202031 3,645 1,894,318 64,226 3.4 15,579 0.8
202032 3,649 1,875,805 57,067 3.0 14,024 0.7
202033 3,645 1,905,636 49,899 2.6 13,289 0.7
202034 3,643 1,888,069 43,727 2.3 12,897 0.7
202035 3,645 1,885,122 37,738 2.0 12,570 0.7
Total 93,370,684 2,469,388 1,555,691