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. State and Local Public Health Laboratories Reporting to CDC

U.S. State and Local Public Health Laboratories Reporting to CDC
Updated May 29, 2020
This graph displays the number of respiratory specimens tested by age group and the percent positive for SARS-CoV-2 by age group reported to CDC by U.S. State and Local Public Health Laboratories.

U.S. State and Local Public Health Laboratories Reporting to CDC
March 1, 2020 – May 2, 2020
Data as of May 7, 2020
Week No. of Labs Total 0-4 years 5-17 years 18-49 years 50-64 years 65+ years
Spec Tested # Pos % Pos Spec Tested # Pos % Pos Spec Tested # Pos % Pos Spec Tested # Pos % Pos Spec Tested # Pos % Pos Spec Tested # Pos % Pos
202010 76 8,326 1,017 12.2 207 10 4.8 559 39 7.0 2,931 294 10.0 1,804 238 13.2 1,915 298 15.6
202011 83 36,309 3,678 10.1 921 19 2.1 1,871 80 4.3 14,752 1,297 8.8 7,892 924 11.7 7,376 879 11.9
202012 84 69,953 6,965 10.0 1,490 33 2.2 2,238 81 3.6 30,545 2,566 8.4 15,350 1,749 11.4 15,401 2,026 13.2
202013 85 66,746 10,990 16.5 1,179 45 3.8 1,352 79 5.8 27,821 3,626 13.0 14,528 2,802 19.3 16,597 3,699 22.3
202014 86 79,729 14,319 18.0 1,069 59 5.5 1,396 162 11.6 32,683 4,227 12.9 17,726 3,486 19.7 21,189 5,359 25.3
202015 85 83,621 15,497 18.5 868 39 4.5 1,540 155 10.1 32,631 4,080 12.5 18,624 3,422 18.4 23,313 6,354 27.3
202016 83 84,056 15,542 18.5 731 60 8.2 1,382 135 9.8 34,092 5,006 14.7 17,847 3,130 17.5 24,166 5,950 24.6
202017 82 129,705 21,424 16.5 851 50 5.9 2,424 322 13.3 56,602 8,269 14.6 27,791 4,528 16.3 35,375 7,077 20.0
202018 83 149,303 19,237 12.9 1128 101 9 3,773 445 11.8 62,112 7,536 12.1 32,337 3,877 12.0 40,571 6,031 14.9
202019 82 161,416 17,328 10.7 1,652 90 5.4 4,132 461 11.2 66,689 7,109 10.7 34,953 3,299 9.4 42,159 4,930 11.7
202020 83 176,544 14,877 8.4 1,305 99 7.6 4,744 473 10.0 72,896 6,464 8.9 38,202 2,706 7.1 49,733 4,122 8.3
202021 78 182,009 12,702 7.0 1,417 91 6.4 4,730 487 10.3 75,914 5,665 7.5 38,407 2,347 6.1 51,703 3,563 6.9
Total . 1,227,717 153,576 12.51 12,818 696 5.4 30,141 2,919 9.7 509,668 56,139 11.0 265,461 32,508 12.2 329,498 50,288 15.3