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

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 July 3, 2020, 02:00 PM
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This graph displays the number of respiratory specimens tested and the percent positive for SARS-CoV-2 reported to CDC by U.S. Clinical Laboratories through the National Respiratory and Enteric Virus Surveillance System.
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Week No. of Labs Spec Tested # Pos % Pos
U.S. Clinical Laboratories Reporting SARS-CoV-2 Test Results to CDC
March 8, 2020 – June 27, 2020
Data as of July 2, 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 10.0
202018 116 105,279 8,965 8.5
202019 124 125,176 8,392 6.7
202020 121 137,552 8,431 6.1
202021 121 148,882 8,561 5.8
202022 131 146,782 7,855 5.4
202023 129 162,915 7,720 4.7
202024 133 175,446 8,163 4.7
202025 126 172,601 9,122 5.3
202026 67 115,483 6,669 5.8
Total 168 1,615,750 106,653 6.6

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