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 10, 2020
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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 – July 4, 2020
Data as of July 9, 2020
202011 32 3214 209 6.5
202012 49 22,831 1,391 6.1
202013 60 46,510 3,860 8.3
202014 72 56,218 5,923 10.5
202015 89 56,908 6,908 12.1
202016 107 66,957 7,201 10.8
202017 114 89,344 8,987 10.1
202018 121 112,380 9,637 8.6
202019 130 136,800 9,246 6.8
202020 128 160,726 9,454 5.9
202021 128 198,977 10,356 5.2
202022 138 207,264 9,879 4.8
202023 136 218,756 9,176 4.2
202024 143 223,115 9,439 4.2
202025 140 222,104 10,550 4.8
202026 134 237,542 13,448 5.7
202027 77 134,818 10,837 8.0
Total 177 2,194,464 136,501 6.2

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