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.
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U.S. State and Local Public Health Laboratories Reporting to CDC
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 8,158 918 11.3 200 9 4.5 538 33 6.1 2,901 259 8.9 1,780 197 11.1 1,942 293 15.1
202011 79 33,193 3,435 10.3 826 19 2.3 1,712 75 4.4 13,510 1,206 8.9 7,272 876 12 7,047 871 12.4
202012 81 66,793 6,812 10.2 1,365 33 2.4 2,106 81 3.8 29,079 2,503 8.6 14,761 1,735 11.8 14,950 2,015 13.5
202013 82 63,380 10,394 16.4 1,088 43 4 1,306 78 6 26,478 3,458 13.1 13,807 2,654 19.2 15,815 3,489 22.1
202014 80 77,163 13,251 17.2 1,024 57 5.6 1,373 157 11.4 32,121 4,078 12.7 17,187 3,209 18.7 20,419 4,901 24
202015 80 80,127 14,240 17.8 808 29 4 1,506 153 10.2 31,752 3,851 12.1 17,976 3,153 17.5 22,366 5,841 26.1
202016 79 72,345 13,636 18.8 588 46 7.8 1,013 112 11.1 28,646 4,358 15.2 15,893 2,740 17.2 22,335 5,603 25.1
Total 401,159 62,686 15.6 5,899 236 4 9,554 689 7.2 164,487 19,713 12 88,676 14,564 16.4 104,874 23,013 21.9

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