Important update: Healthcare facilities
CDC has updated select ways to operate healthcare systems effectively in response to COVID-19 vaccination. Learn more
To maximize protection from the Delta variant and prevent possibly spreading it to others, get vaccinated as soon as you can and wear a mask indoors in public if you are in an area of substantial or high transmission.
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

U.S. Clinical Laboratories Reporting SARS-CoV-2 Test Results to CDC

U.S. Clinical Laboratories Reporting SARS-CoV-2 Test Results to CDC
Updated June 19, 2020, 02:00 PM

Week No. of Labs Spec Tested # Pos % Pos
U.S. Clinical Laboratories Reporting SARS-CoV-2 Test Results to CDC
March 8, 2020 – June 13, 2020
Data as of June 18, 2020
202011 28 2,493 147 5.9
202012 45 19,233 1,208 6.3
202013 56 44,081 3,654 8.3
202014 67 53,982 5,628 10.4
202015 85 54,710 6,634 12.1
202016 101 65,900 6,999 10.6
202017 109 85,235 8,505 10
202018 116 105,279 8,965 8.5
202019 124 125,176 8,392 6.7
202020 120 135,800 8,358 6.2
202021 120 146,723 8,410 5.7
202022 129 144,736 7,763 5.4
202023 123 159,202 7,600 4.8
202024 67 127,232 5,871 4.6
Total 162 1,269,782 88,134 6.9

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