Important update: Healthcare facilities
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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.
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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 Jan. 22, 2021
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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
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Combined U.S. Laboratories Reporting to CDC: Public Health Laboratories and a Subset of Commercial and Clinical Laboratories
March 1, 2020 – January 16, 2021
Data as of January 21, 2021

Combined U.S. Laboratories Reporting to CDC: Public Health Laboratories and a Subset of Commercial and Clinical LaboratoriesMarch 1, 2020 – January 16, 2021Data as of January 21, 2021
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 8,324 11.8 230 4.4 587 7.2 3,188 10 1,980 12.5 2,160 15.4
202011 38,409 9.5 981 2 1,978 4.2 15,627 8.8 8,424 11.7 7,972 11.9
202012 89,395 9 1,581 2.3 2,333 3.7 31,877 8.3 16,168 11.3 16,350 12.8
202013 111,164 13.1 1,267 3.7 1,432 5.6 29,999 12.8 15,633 18.7 17,754 21.4
202014 662,387 22.1 9,071 7.1 15,912 16 319,477 21.2 156,742 26.3 103,855 26.8
202015 646,212 21.7 7,628 9.3 16,007 18 301,853 21 155,540 24.6 106,400 26.1
202016 653,088 19 7,371 10 18,072 16.8 290,512 19.5 153,590 20.7 113,378 21.7
202017 833,672 15.7 8,634 9.4 24,593 16.1 359,774 16.7 191,110 16.2 155,895 16.4
202018 1,001,274 12.8 10,898 9.1 30,952 15.3 423,666 14.2 226,963 12.7 190,843 12.5
202019 1,174,914 10 13,926 8 37,280 13 482,714 11.6 263,537 9.5 233,498 8.9
202020 1,439,168 7.8 16,901 7.7 46,975 11.3 581,203 9.3 322,398 7.1 298,115 6.4
202021 1,747,444 6.9 19,318 7.8 55,885 10.9 730,422 8.1 383,794 6.2 346,176 5.3
202022 1,739,057 6.5 17,600 7.9 53,179 11.5 728,287 7.8 379,468 5.9 341,333 4.8
202023 1,950,975 6.2 20,269 8.3 63,591 10.8 852,838 7.5 408,105 5.5 357,737 4.3
202024 2,151,917 6.6 24,084 8.8 76,734 11.2 978,851 8.3 434,267 5.6 359,730 4.1
202025 2,450,364 8.3 30,570 9.9 101,866 11.9 1,171,960 10.4 477,631 6.5 374,498 4.4
202026 2,905,644 9.5 38,371 10.5 136,759 12.5 1,438,753 11.6 554,993 7.6 403,476 5.2
202027 2,850,092 9.7 37,572 10 139,532 12.2 1,444,275 11.3 535,597 8.5 372,189 5.9
202028 3,153,871 9.8 43,175 10.3 156,760 12.8 1,591,795 11.2 606,012 8.9 421,459 6.7
202029 3,124,551 8.9 43,077 9.4 157,177 12.1 1,546,021 10 590,053 8.4 407,185 6.7
202030 2,812,894 8.4 38,823 9.2 136,334 11.6 1,364,114 9.2 530,508 8.2 369,304 6.8
202031 2,607,670 7.4 35,599 8.4 124,849 10.9 1,270,639 7.7 479,095 7.2 334,788 6.2
202032 2,509,523 6.7 34,254 7.8 118,356 9.9 1,216,640 6.9 460,552 6.5 324,799 5.8
202033 2,458,649 6 34,279 6.8 117,777 8.8 1,197,985 6 443,565 5.8 317,120 5.2
202034 2,442,038 5.4 33,864 6 118,088 7.7 1,160,515 5.6 426,585 5.2 298,075 4.8
202035 2,259,566 5.6 33,549 5.6 122,777 7.1 1,081,927 6 403,702 5 283,427 4.3
202036 2,295,854 5.3 33,665 5 125,081 6.2 1,109,513 5.7 404,038 4.5 284,616 4
202037 2,162,430 5.1 30,806 4.2 115,915 6.1 1,000,157 5.4 384,759 4.3 287,241 3.7
202038 2,504,078 5 37,534 4.1 150,441 6 1,134,350 5.2 438,863 4.3 326,187 3.8
202039 2,597,069 5.2 36,103 4.1 144,759 5.8 996,200 5.2 388,014 4.5 292,529 3.9
202040 2,630,311 5.3 40,658 4.1 164,608 5.9 1,164,982 5.2 457,745 4.8 340,526 4.2
202041 2,978,923 5.6 44,194 4.4 186,865 6.3 1,336,096 5.4 527,643 5.2 385,816 4.6
202042 2,903,522 6.6 42,721 5.4 185,215 7.3 1,306,903 6.3 512,038 6.1 374,648 5.3
202043 3,065,847 7.3 45,966 5.9 208,679 8 1,414,518 7.1 552,811 7 400,020 6.1
202044 3,236,092 8.6 48,350 6.7 226,763 9 1,485,775 8.2 575,328 8.2 406,428 6.9
202045 3,559,366 10.9 58,427 8.2 269,590 11.4 1,658,561 10.7 621,108 10.4 434,627 8.7
202046 3,943,480 12 68,219 8.9 307,697 12.7 1,825,847 11.8 704,872 11.7 490,272 10
202047 4,583,690 10.7 78,722 8.9 343,156 11.9 2,192,315 10.3 828,462 10.8 566,161 9.7
202048 3,423,934 12.1 54,696 10.3 207,653 15 1,581,986 11.6 601,486 12.3 424,635 10.9
202049 3,931,047 13.5 68,044 12 278,885 16.6 1,864,613 13.4 732,618 13.4 505,684 11.7
202050 3,803,902 12.9 67,710 11.7 277,937 15.7 1,772,876 13 714,640 13 492,841 11.6
202051 3,640,447 12.5 62,530 11.8 249,581 15.6 1,733,215 12.3 681,388 12.9 466,646 11.6
202052 2,831,274 13 43,526 12.7 173,390 16.8 1,359,946 12.7 530,091 13.5 366,678 12.3
202053 3,003,146 15.5 50,162 15.1 181,575 21 1,441,251 15.2 563,505 15.8 395,770 14.3
202101 3,562,541 14.7 59,604 15.1 254,778 19.3 1,712,317 14.5 655,518 14.9 439,901 13.8
202102 2,922,707 11.9 51,914 12.4 205,506 15.2 1,320,499 11.5 513,866 12.1 347,106 11.3

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