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 Aug. 21, 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 15, 2020
Data as of August 20, 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 3,370 2,150,485 23,059 1.1 19,685 0.9
201941 3,364 2,104,234 23,968 1.1 20,504 1.0
201942 3,366 2,094,728 26,301 1.3 22,525 1.1
201943 3,365 2,117,345 27,416 1.3 23,819 1.1
201944 3,383 2,074,433 29,141 1.4 25,466 1.2
201945 3,426 2,135,683 33,797 1.6 29,990 1.4
201946 3,431 2,131,994 36,300 1.7 32,657 1.5
201947 3,451 2,220,060 39,338 1.8 36,292 1.6
201948 3,452 2,108,677 43,133 2.0 39,989 1.9
201949 3,457 2,236,414 41,905 1.9 37,933 1.7
201950 3,458 2,250,527 44,137 2.0 42,746 1.9
201951 3,459 2,234,404 49,815 2.2 51,198 2.3
201952 3,463 2,343,131 64,603 2.8 69,028 2.9
202001 3,493 2,423,093 59,165 2.4 58,117 2.4
202002 3,496 2,309,003 43,768 1.9 43,101 1.9
202003 3,493 2,279,481 42,751 1.9 45,151 2.0
202004 3,516 2,277,237 46,438 2.0 50,126 2.2
202005 3,526 2,370,718 54,468 2.3 60,306 2.5
202006 3,532 2,359,245 53,665 2.3 59,695 2.5
202007 3,550 2,295,186 47,845 2.1 51,467 2.2
202008 3,551 2,280,680 44,434 1.9 46,523 2.0
202009 3,556 2,243,013 41,238 1.8 42,310 1.9
202010 3,570 2,273,489 49,964 2.2 50,491 2.2
202011 3,574 2,259,733 77,455 3.4 72,225 3.2
202012 3,572 1,815,195 108,684 6.0 85,330 4.7
202013 3,588 1,459,251 100,539 6.9 62,933 4.3
202014 3,585 1,270,159 87,967 6.9 44,259 3.5
202015 3,580 1,207,514 73,597 6.1 30,483 2.5
202016 3,582 1,186,001 59,861 5.0 21,641 1.8
202017 3,575 1,256,180 54,005 4.3 17,742 1.4
202018 3,580 1,312,327 49,657 3.8 15,164 1.2
202019 3,575 1,374,268 43,463 3.2 12,768 0.9
202020 3,578 1,423,941 39,809 2.8 11,948 0.8
202021 3,599 1,526,468 36,861 2.4 11,470 0.8
202022 3,622 1,619,601 33,060 2.0 10,173 0.6
202023 3,625 1,668,738 30,433 1.8 9,942 0.6
202024 3,624 1,743,720 32,642 1.9 10,685 0.6
202025 3,633 1,788,081 41,629 2.3 13,595 0.8
202026 3,642 1,882,149 57,766 3.1 17,627 0.9
202027 3,645 1,886,882 72,030 3.8 19,911 1.1
202028 3,638 1,982,071 82,081 4.1 21,410 1.1
202029 3,640 1,941,017 78,212 4.0 19,962 1.0
202030 3,637 1,903,452 68,542 3.6 16,833 0.9
202031 3,635 1,881,023 60,402 3.2 15,395 0.8
202032 3,635 1,870,842 53,155 2.8 13,981 0.7
202033 3,632 1,892,838 43,658 2.3 13,196 0.7
Total 89,464,711 2,352,157 1,527,792