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 June 5, 2020, 02:00 PM
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.

Week No. of Labs Spec Tested # Pos % Pos
U.S. Clinical Laboratories Reporting SARS-CoV-2 Test Results to CDC
March 8, 2020 – May 30, 2020
Data as of June 4, 2020
202011 28 2493 147 5.9
202012 45 18759 1169 6.2
202013 56 45031 3957 8.8
202014 67 55919 6250 11.2
202015 85 56303 7107 12.6
202016 99 67222 7381 11
202017 105 87177 9078 10.4
202018 112 108149 9761 9
202019 119 126887 8894 7
202020 114 136776 8763 6.4
202021 107 128814 7764 6
202022 63 88660 5206 5.9
Total 922190 75477 8.2