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 June 5, 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 – May 30, 2020
Data as of June 4, 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 3,314 2,167,248 23,108 1.1 19,731 0.9
201941 3,310 2,122,018 24,061 1.1 20,604 1
201942 3,311 2,116,541 26,447 1.2 22,678 1.1
201943 3,315 2,137,611 27,533 1.3 23,929 1.1
201944 3,354 2,095,690 29,259 1.4 25,627 1.2
201945 3,364 2,144,173 33,912 1.6 30,137 1.4
201946 3,381 2,128,320 36,243 1.7 32,611 1.5
201947 3,397 2,216,182 39,285 1.8 36,248 1.6
201948 3,395 2,104,818 43,052 2 39,920 1.9
201949 3,400 2,232,092 41,818 1.9 37,859 1.7
201950 3,411 2,246,003 44,036 2 42,641 1.9
201951 3,401 2,229,735 49,684 2.2 51,053 2.3
201952 3,406 2,336,526 64,407 2.8 68,784 2.9
202001 3,432 2,414,095 58,860 2.4 57,771 2.4
202002 3,429 2,298,736 43,490 1.9 42,768 1.9
202003 3,430 2,269,414 42,426 1.9 44,771 2
202004 3,453 2,267,045 46,125 2 49,768 2.2
202005 3,466 2,359,539 54,112 2.3 59,887 2.5
202006 3,457 2,347,891 53,285 2.3 59,219 2.5
202007 3,477 2,282,138 47,515 2.1 51,089 2.2
202008 3,478 2,267,126 44,134 1.9 46,158 2
202009 3,490 2,231,268 40,916 1.8 41,978 1.9
202010 3,502 2,259,189 49,544 2.2 50,044 2.2
202011 3,506 2,244,801 76,871 3.4 71,635 3.2
202012 3,503 1,801,445 107,778 6 84,643 4.7
202013 3,516 1,447,276 99,624 6.9 62,494 4.3
202014 3,520 1,261,162 87,160 6.9 43,957 3.5
202015 3,510 1,199,582 72,826 6.1 30,259 2.5
202016 3,515 1,178,197 59,094 5 21,420 1.8
202017 3,504 1,247,859 53,171 4.3 17,533 1.4
202018 3,511 1,304,053 48,722 3.7 14,933 1.1
202019 3,509 1,365,821 42,517 3.1 12,617 0.9
202020 3,511 1,414,412 38,598 2.7 11,834 0.8
202021 3,528 1,514,701 35,149 2.3 11,300 0.7
202022 3,555 1,597,335 29,364 1.8 9,905 0.6
Total 68,850,042 1,714,126 1,347,805