Important update: Healthcare facilities
CDC has updated select ways to operate healthcare systems effectively in response to COVID-19 vaccination. Learn more
To maximize protection from the Delta variant and prevent possibly spreading it to others, get vaccinated as soon as you can and wear a mask indoors in public if you are in an area of substantial or high transmission.
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.
COVIDView: A Weekly Surveillance Summary of U.S. COVID-19 Activity

Number of Specimens Tested and Percent Positive for SARS-CoV-2

Number of Specimens Tested and Percent Positive for SARS-CoV-2
Updated Nov. 30, 2020

Combined U.S. Laboratories Reporting to CDC: Public Health Laboratories and a Subset of Commercial and Clinical Laboratories
March 1, 2020 – November 21, 2020
Data as of November 25, 2020
Total (includes age unknown) 0-4 years 5-17 years 18-49 years 50-64 years 65+ years
Week Spec Tested % Pos Spec Tested % Pos Spec Tested % Pos Spec Tested % Pos Spec Tested % Pos Spec Tested % Pos
202010 8,307 11.8 228 4.4 586 7.2 3,181 10.0 1,976 12.6 2,157 15.4
202011 38,232 9.5 978 2.0 1,971 4.2 15,611 8.8 8,412 11.7 7,968 11.9
202012 87,354 9.2 1,577 2.2 2,330 3.7 31,867 8.3 16,157 11.3 16,337 12.8
202013 110,083 13.2 1,266 3.8 1,432 5.6 29,997 12.7 15,635 18.7 17,749 21.4
202014 659,975 21.8 9,127 6.5 15,396 13.6 318,206 20.6 156,998 26.2 104,205 27.1
202015 643,008 21.4 7,659 8.4 15,410 15.6 299,823 20.4 156,398 24.5 106,290 26.3
202016 651,054 18.5 7,371 9.0 17,710 14.9 288,443 18.7 154,906 20.3 113,965 21.5
202017 831,012 15.3 8,563 8.5 23,365 14.6 358,150 16.2 192,959 15.9 156,627 16.3
202018 997,583 12.5 10,910 8.7 29,846 14.3 421,742 13.7 228,352 12.3 191,902 12.3
202019 1,168,290 9.7 13,869 7.5 36,537 12.4 479,813 11.1 265,106 9.1 235,267 8.8
202020 1,431,579 7.6 16,931 7.5 46,261 10.9 578,019 8.9 323,745 6.8 300,223 6.3
202021 1,739,333 6.4 19,214 7.5 53,973 10.4 724,835 7.5 387,031 5.6 349,355 5.1
202022 1,732,978 5.7 17,340 7.3 51,193 10.7 721,476 6.8 383,284 4.9 344,867 4.3
202023 1,944,329 5.5 19,976 7.9 60,131 10.4 846,344 6.7 412,675 4.5 361,979 3.8
202024 2,143,643 6.1 23,896 8.5 73,776 10.9 974,813 7.7 437,944 4.9 361,677 3.7
202025 2,440,220 7.9 30,339 9.8 99,760 11.8 1,169,711 10.1 480,400 6.1 375,220 4.2
202026 2,892,810 9.4 38,340 10.5 136,610 12.5 1,438,075 11.5 555,252 7.6 403,543 5.2
202027 2,849,953 9.7 37,567 10.0 139,510 12.2 1,444,136 11.3 535,552 8.5 372,167 5.9
202028 3,146,074 9.8 43,142 10.3 156,426 12.8 1,588,363 11.2 604,207 8.9 419,244 6.8
202029 3,116,896 8.9 43,044 9.4 156,756 12.1 1,542,617 10.0 588,400 8.4 405,134 6.7
202030 2,804,602 8.4 38,806 9.2 136,104 11.6 1,360,455 9.2 528,680 8.2 367,093 6.8
202031 2,599,778 7.4 35,564 8.4 124,622 10.8 1,266,980 7.8 477,326 7.2 333,252 6.2
202032 2,502,839 6.7 34,229 7.8 118,169 9.9 1,213,480 6.9 458,954 6.5 323,263 5.8
202033 2,450,013 6.0 34,244 6.8 117,543 8.8 1,193,823 6.0 441,437 5.8 315,353 5.2
202034 2,436,656 5.4 33,855 6.0 117,791 7.7 1,158,200 5.6 425,321 5.1 296,879 4.8
202035 2,255,428 5.6 33,518 5.6 122,530 7.1 1,080,058 6.0 402,743 5.0 282,761 4.3
202036 2,291,347 5.3 33,583 5.0 124,678 6.2 1,107,225 5.7 403,251 4.5 283,950 4.0
202037 2,158,338 5.0 30,773 4.2 115,652 6.1 998,266 5.4 383,870 4.3 286,519 3.6
202038 2,498,654 5.0 37,498 4.1 150,149 6.0 1,131,939 5.2 437,424 4.3 325,353 3.8
202039 2,583,828 5.2 36,049 4.1 144,445 5.7 994,315 5.2 386,964 4.5 291,504 3.9
202040 2,583,265 5.3 40,614 4.1 164,349 5.9 1,162,350 5.2 456,472 4.8 339,564 4.2
202041 2,924,008 5.6 44,125 4.4 186,459 6.3 1,332,435 5.4 525,496 5.1 384,061 4.6
202042 2,854,065 6.5 42,688 5.4 184,675 7.3 1,304,686 6.3 510,860 6.1 373,536 5.3
202043 3,011,682 7.2 45,867 5.9 208,083 8.0 1,408,736 7.1 550,578 7.0 397,982 6.1
202044 3,176,974 8.5 48,169 6.7 225,538 9.0 1,478,700 8.2 572,708 8.2 403,760 7.0
202045 3,505,429 10.8 58,246 8.2 268,542 11.4 1,653,781 10.7 619,080 10.4 432,679 8.7
202046 3,846,232 12.0 67,755 8.9 305,516 12.7 1,805,053 11.8 695,900 11.7 481,946 10.1
202047 3,769,481 10.6 62,566 8.7 269,560 11.7 1,659,249 10.1 632,072 10.6 445,989 9.4

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