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 1, 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.
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U.S. State and Local Public Health Laboratories Reporting to CDCMarch 1, 2020 – April 25, 2020Data as of April 30, 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 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 8,288 1,017 12.3 200 9 4.5 541 39 7.2 2,903 294 10.1 1,781 238 13.4 1,897 297 15.7
202011 79 33,409 3,525 10.6 826 19 2.3 1,712 77 4.5 13,408 1,243 9.3 7,247 897 12.4 6,987 866 12.4
202012 81 67,046 6,822 10.2 1,364 33 2.4 2,103 81 3.9 28,968 2,494 8.6 14,712 1,732 11.8 14,899 2,010 13.5
202013 82 64,355 10,769 16.7 1,091 45 4.1 1,305 78 6.0 26,534 3,547 13.4 13,901 2,739 19.7 15,962 3,633 22.8
202014 81 79,038 14,168 17.9 1,036 58 5.6 1,379 160 11.6 32,252 4,212 13.1 17,460 3,456 19.8 20,899 5,319 25.5
202015 81 82,115 15,124 18.4 829 32 4 1,511 154 10.2 32,150 4,022 12.5 18,357 3,374 18.4 22,905 6,254 27.3
202016 80 78,526 15,208 19.4 622 57 9.2 1,066 118 11.1 30,820 4,907 15.9 16,914 3,065 18.1 23,342 5,915 25.3
202017 76 110,603 18,891 17.1 721 43 6.0 2,177 298 13.7 45,811 7,285 15.9 24,917 4,054 16.3 32,664 6,603 20.2
Total 523380 85524 16.3 6689 296 4.4 11,794 1,005 8.5 212,846 28,004 13.2 115,289 19,555 17.0 139,555 30,897 22.1

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