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

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

Number of Specimens Tested and Percent Positive for SARS-CoV-2
Updated Dec. 28, 2020
Print
Related Pages
Number of Specimens Tested and Percent Positive for SARS- CoV-2: Combined Laboratories Reporting to CDC from Public Health Laboratories and a Subset of Commercial and Clinical Laboratories
resize iconView Larger

Combined U.S. Laboratories Reporting to CDC: Public Health Laboratories and a Subset of Commercial and Clinical Laboratories
March 1, 2020 – December 19, 2020
Data as of December 23, 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 8,319 11.8 228 4.4 586 7.2 3,187 10 1,980 12.5 2,160 15.5
202011 38,343 9.5 984 2 1,984 4.2 15,662 8.8 8,442 11.7 7,981 11.9
202012 87,982 9.1 1,588 2.2 2,363 3.7 32,202 8.3 16,307 11.2 16,436 12.7
202013 110,621 13.1 1,282 3.7 1,444 5.5 30,325 12.6 15,753 18.6 17,815 21.4
202014 661,133 22.1 9,043 7.1 15,849 15.9 319,538 21.2 156,624 26.3 103,959 26.8
202015 644,951 21.7 7,643 9.3 15,992 17.9 301,558 21 155,824 24.7 106,385 26.1
202016 651,634 19.1 7,341 10.1 18,133 16.6 290,545 19.5 153,546 20.7 113,362 21.6
202017 831,413 15.7 8,646 9.3 24,534 16.1 359,860 16.7 191,177 16.2 155,811 16.3
202018 998,210 12.9 10,897 9.1 30,879 15.1 423,796 14.2 226,997 12.7 190,752 12.5
202019 1,168,660 10 13,910 7.9 37,346 13.1 482,912 11.6 263,448 9.5 233,309 8.9
202020 1,432,070 7.8 16,933 7.7 46,921 11.3 581,125 9.2 322,528 7.1 298,057 6.4
202021 1,739,443 6.5 19,232 7.5 54,211 10.5 726,204 7.6 386,444 5.7 348,448 5.1
202022 1,733,051 5.7 17,342 7.3 51,193 10.7 721,521 6.8 383,306 4.9 344,872 4.3
202023 1,944,437 5.5 19,982 7.9 60,131 10.4 846,410 6.7 412,699 4.5 361,992 3.8
202024 2,143,807 6.1 23,895 8.5 73,784 10.9 974,918 7.7 437,977 4.9 361,694 3.7
202025 2,440,459 7.9 30,347 9.8 99,772 11.8 1,169,837 10.1 480,451 6.1 375,259 4.2
202026 2,893,118 9.4 38,347 10.5 136,618 12.5 1,438,246 11.6 555,317 7.6 403,597 5.2
202027 2,849,946 9.7 37,569 10 139,522 12.2 1,444,180 11.3 535,573 8.5 372,174 5.9
202028 3,153,324 9.8 43,171 10.3 156,736 12.8 1,591,356 11.2 605,967 8.9 421,422 6.7
202029 3,123,910 8.9 43,074 9.4 157,151 12.1 1,545,474 10 590,008 8.4 407,168 6.7
202030 2,812,312 8.4 38,820 9.2 136,306 11.6 1,363,642 9.2 530,466 8.2 369,265 6.8
202031 2,607,398 7.4 35,597 8.4 124,836 10.9 1,270,492 7.7 479,051 7.2 334,723 6.2
202032 2,509,344 6.7 34,252 7.8 118,354 9.9 1,216,568 6.8 460,523 6.5 324,727 5.8
202033 2,458,267 6 34,277 6.8 117,775 8.8 1,197,762 6 443,470 5.8 317,059 5.2
202034 2,441,822 5.4 33,866 6 118,082 7.7 1,160,400 5.6 426,520 5.2 298,045 4.8
202035 2,259,567 5.6 33,549 5.6 122,778 7.1 1,081,925 6 403,704 5 283,427 4.3
202036 2,295,834 5.3 33,663 5 125,083 6.3 1,109,500 5.7 404,034 4.5 284,613 4
202037 2,162,377 5.1 30,808 4.2 115,916 6.1 1,000,130 5.4 384,739 4.3 287,239 3.7
202038 2,504,033 5 37,533 4.1 150,440 6 1,134,337 5.2 438,851 4.3 326,183 3.8
202039 2,588,486 5.2 36,103 4.1 144,752 5.8 996,172 5.2 388,005 4.5 292,523 3.9
202040 2,614,959 5.3 40,660 4.1 164,604 5.9 1,164,965 5.2 457,734 4.8 340,520 4.2
202041 2,962,615 5.6 44,198 4.4 186,857 6.3 1,336,070 5.4 527,641 5.2 385,809 4.6
202042 2,887,719 6.6 42,721 5.4 185,142 7.3 1,306,783 6.3 511,974 6.1 374,554 5.3
202043 3,049,728 7.3 45,964 5.9 208,672 8 1,414,237 7.1 552,765 7 399,921 6.1
202044 3,219,184 8.6 48,345 6.7 226,570 9 1,485,639 8.2 575,292 8.2 406,398 6.9
202045 3,540,120 10.8 58,420 8.2 269,459 11.4 1,658,366 10.7 621,069 10.4 434,606 8.7
202046 3,922,336 11.9 68,205 8.9 307,664 12.7 1,825,527 11.8 704,763 11.7 490,195 10
202047 4,559,893 10.7 78,713 8.9 343,118 11.9 2,191,875 10.3 828,353 10.8 566,046 9.7
202048 3,401,630 12.1 54,653 10.3 207,211 15 1,580,009 11.6 601,061 12.3 424,341 10.9
202049 3,874,696 13.4 67,960 12 277,736 16.5 1,859,363 13.4 731,507 13.4 505,127 11.7
202050 3,738,494 12.9 67,567 11.7 276,863 15.6 1,767,618 13 712,920 13 491,726 11.5
202051 3,098,030 12.1 51,435 11.4 202,144 15 1,365,698 11.8 541,691 12.2 384,385 11

Download Raw Data excel icon[XLS – 34 KB]