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.
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 May 22, 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 – May 16, 2020
Data as of May 14, 2020
202011 26 2,486 146 5.9
202012 42 18,674 1,153 6.2
202013 54 43,375 3,545 8.2
202014 63 53,107 5,471 10.3
202015 82 53,696 6,460 12
202016 96 64,654 6,829 10.6
202017 102 82,847 8,216 9.9
202018 109 102,080 8,653 8.5
202019 115 115,615 7,370 6.4
202020 64 84,531 4,938 5.8
Total 621,065 52,781 8.5

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