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. 11, 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 – September 5, 2020
Data as of September 10, 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 3,373 2,150,889 22,619 1.1 19,688 0.9
201941 3,370 2,104,557 23,494 1.1 20,505 1
201942 3,375 2,095,053 25,758 1.2 22,527 1.1
201943 3,370 2,117,709 26,887 1.3 23,825 1.1
201944 3,390 2,074,775 28,640 1.4 25,469 1.2
201945 3,429 2,136,042 33,204 1.6 29,994 1.4
201946 3,436 2,132,358 35,735 1.7 32,663 1.5
201947 3,455 2,220,453 38,769 1.7 36,297 1.6
201948 3,456 2,109,038 42,536 2 39,993 1.9
201949 3,462 2,236,788 41,249 1.8 37,935 1.7
201950 3,464 2,250,912 43,516 1.9 42,755 1.9
201951 3,467 2,234,781 49,160 2.2 51,206 2.3
201952 3,467 2,343,559 63,869 2.7 69,041 2.9
202001 3,502 2,427,110 58,521 2.4 58,223 2.4
202002 3,508 2,315,055 43,207 1.9 43,205 1.9
202003 3,505 2,285,238 42,211 1.8 45,255 2
202004 3,530 2,282,962 45,933 2 50,279 2.2
202005 3,539 2,377,040 53,881 2.3 60,478 2.5
202006 3,547 2,365,348 53,102 2.2 59,835 2.5
202007 3,564 2,301,037 47,313 2.1 51,611 2.2
202008 3,563 2,286,650 43,876 1.9 46,636 2
202009 3,569 2,248,862 40,667 1.8 42,434 1.9
202010 3,582 2,279,606 49,329 2.2 50,650 2.2
202011 3,588 2,265,808 76,355 3.4 72,458 3.2
202012 3,584 1,820,236 106,818 5.9 85,600 4.7
202013 3,603 1,463,174 98,572 6.7 63,134 4.3
202014 3,602 1,273,565 86,249 6.8 44,370 3.5
202015 3,594 1,210,638 72,230 6 30,564 2.5
202016 3,595 1,189,138 58,627 4.9 21,707 1.8
202017 3,586 1,259,499 52,972 4.2 17,803 1.4
202018 3,592 1,315,852 48,752 3.7 15,194 1.2
202019 3,589 1,378,155 42,674 3.1 12,814 0.9
202020 3,593 1,427,981 39,054 2.7 11,987 0.8
202021 3,612 1,530,633 36,246 2.4 11,511 0.8
202022 3,636 1,623,898 32,652 2 10,205 0.6
202023 3,640 1,673,093 30,384 1.8 9,972 0.6
202024 3,643 1,748,271 32,614 1.9 10,716 0.6
202025 3,647 1,792,833 41,780 2.3 13,632 0.8
202026 3,657 1,887,093 57,960 3.1 17,674 0.9
202027 3,660 1,892,386 72,619 3.8 19,963 1.1
202028 3,654 1,987,992 82,849 4.2 21,478 1.1
202029 3,658 1,946,422 79,493 4.1 20,017 1
202030 3,654 1,908,957 70,461 3.7 16,899 0.9
202031 3,654 1,896,065 63,120 3.3 15,598 0.8
202032 3,657 1,878,240 56,182 3 14,038 0.7
202033 3,655 1,908,791 49,270 2.6 13,320 0.7
202034 3,658 1,892,723 43,522 2.3 12,924 0.7
202035 3,659 1,895,315 39,637 2.1 12,678 0.7
202036 3,642 1,877,958 33,640 1.8 12,212 0.7
Total 95,320,538 2,458,208 1,568,972