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 Apr. 24, 2020
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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 – April 4, 2020
Data as of April 9, 2020
National
Week No. of Labs Total 0-4 years 5-17 years 18-49 years 50-64 years 65+ years
Spec Tested # Pos % Pos Spec Test-ed # Pos % Pos Spec Test-ed # Pos % Pos Spec Test-ed # Pos % Pos Spec Test-ed # Pos % Pos Spec Tested # Pos % Pos
202010 73 8,149 916 11.2 201 9 4.5 538 33 6.1 2,904 259 8.9 1,780 197 11.1 1,941 293 15.1
202011 79 32,820 3,359 10.2 826 19 2.3 1,712 75 4.4 13,510 1,206 8.9 7,270 876 12.1 7,048 870 12.3
202012 81 66,403 6,748 10.2 1,366 33 2.4 2,106 81 3.9 29,083 2,504 8.6 14,762 1,734 11.8 14,956 2,016 13.5
202013 82 62,791 10,280 16.4 1,088 43 4.0 1,299 78 6.0 26,434 3,448 13.0 13,789 2,651 19.2 15,806 3,485 22.1
202014 79 74,068 12,780 17.3 979 55 5.6 1,328 152 11.5 30,861 3,937 12.8 16,653 3,124 18.8 19,874 4,807 24.2
202015 78 75,654 13,466 17.8 750 26 3.5 1,460 153 10.5 30,244 3,690 12.2 17,090 3,013 17.6 21,320 5,666 26.6
Total (includes unknown age) 319,885 47,549 14.9 5,210 185 3.6 8,443 572 6.8 133,036 15,044 11.3 71,344 11,595 16.3 80,945 17,137 21.2

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