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 May 15, 2020
This graph displays data on emergency department (ED) visits for COVID-19-like illness (CLI) and influenza like illness (ILI) reported to CDC by the National Syndromic Surveillance Program (NSSP).

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 9, 2020
Data as of May 14, 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 3,287 2,153,526 22,943 1.1 19,586 0.9
201941 3,265 2,108,369 23,906 1.1 20,464 1.0
201942 3,272 2,102,742 26,289 1.3 22,537 1.1
201943 3,269 2,123,841 27,380 1.3 23,799 1.1
201944 3,313 2,088,744 29,112 1.4 25,486 1.2
201945 3,328 2,139,288 33,737 1.6 29,972 1.4
201946 3,342 2,123,714 36,079 1.7 32,452 1.5
201947 3,353 2,211,096 39,123 1.8 36,108 1.6
201948 3,356 2,099,213 42,782 2.0 39,651 1.9
201949 3,355 2,225,817 41,576 1.9 37,617 1.7
201950 3,362 2,242,058 43,913 2.0 42,541 1.9
201951 3,363 2,227,119 49,594 2.2 50,983 2.3
201952 3,370 2,333,856 64,296 2.8 68,692 2.9
202001 3,377 2,410,730 58,736 2.4 57,662 2.4
202002 3,378 2,294,852 43,386 1.9 42,646 1.9
202003 3,388 2,265,425 42,370 1.9 44,672 2.0
202004 3,405 2,263,158 46,033 2.0 49,653 2.2
202005 3,416 2,355,703 54,043 2.3 59,786 2.5
202006 3,415 2,344,697 53,197 2.3 59,091 2.5
202007 3,427 2,278,552 47,410 2.1 50,955 2.2
202008 3,426 2,260,803 43,995 1.9 46,001 2.0
202009 3,437 2,224,573 40,794 1.8 41,824 1.9
202010 3,449 2,255,589 49,433 2.2 49,933 2.2
202011 3,449 2,241,335 76,735 3.4 71,519 3.2
202012 3,447 1,798,815 107,420 6.0 84,463 4.7
202013 3,454 1,445,053 99,108 6.9 62,341 4.3
202014 3,451 1,257,866 86,448 6.9 43,815 3.5
202015 3,435 1,195,704 71,878 6.0 30,108 2.5
202016 3,439 1,174,298 57,912 4.9 21,322 1.8
202017 3,425 1,242,565 51,358 4.1 17,442 1.4
202018 3,425 1,291,148 43,915 3.4 14,740 1.1
202019 3,439 1,354,470 38,214 2.8 12,514 0.9
Total 62,889,493 1,562,987 1,299,971