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 Oct. 2, 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 – September 26, 2020
Data as of October 1, 2020
202011 32 3,214 209 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 90 57,026 6,914 12.1
202016 109 68,229 7,268 10.7
202017 116 90,760 9,053 10
202018 123 113,973 9,685 8.5
202019 132 138,244 9,104 6.6
202020 134 163,350 9,565 5.9
202021 134 202,060 10,578 5.2
202022 144 210,509 10,038 4.8
202023 143 222,305 9,329 4.2
202024 150 227,138 9,587 4.2
202025 148 234,568 10,962 4.7
202026 147 266,708 15,908 6
202027 160 286,388 19,729 6.9
202028 160 315,465 23,407 7.4
202029 160 368,094 24,692 6.7
202030 158 355,498 22,802 6.4
202031 155 344,473 21,680 6.3
202032 149 347,753 20,617 5.9
202033 154 341,102 19,075 5.6
202034 156 321,630 17,171 5.3
202035 157 344,561 17,801 5.2
202036 154 326,362 17,789 5.5
202037 155 329,289 19,028 5.8
202038 157 382,865 23,695 6.2
202039 90 216,040 13,629 6.3
Total 199 6,403,163 390,489 6.1

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