Reported Tuberculosis in the United States, 2020

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Table 8. Tuberculosis Cases and Percentages, by Resistance to Isoniazid (INH),1 Origin of Birth, and Previous History of TB: United States, 1993–2020

See Surveillance Slide #55.

Table 8. Tuberculosis Cases and Percentages, by Resistance to Isoniazid (INH), Origin of Birth, and Previous History of TB: United States, 1993–2019
Year All INH-Resistant2 Isoniazid Resistant TB Cases
Total INH-Resistant U.S.-Born INH-Resistant3 Non-U.S.–Born3,4 INH-Resistant
Previous TB No previous TB Previous TB No previous TB Previous TB No previous TB
Eligible No. (%) Eligible No. (%) Eligible No. (%) Eligible No. (%) Eligible No. (%) Eligible No. (%)
1993 1,534 982 161 (16.4) 16,604 1,367 (8.2) 668 83 (12.4) 11,809 789 (6.7) 301 75 (24.9) 4,667 564 (12.1)
1994 1,543 1033 175 (16.9) 16,419 1,352 (8.2) 693 81 (11.7) 11,011 708 (6.4) 336 93 (27.7) 5,291 632 (11.9)
1995 1,352 958 168 (17.5) 16,024 1,174 (7.3) 592 77 (13.0) 10,340 554 (5.4) 364 91 (25.0) 5,653 619 (10.9)
1996 1,284 862 142 (16.5) 15,361 1,133 (7.4) 559 68 (12.2) 9,637 495 (5.1) 303 74 (24.4) 5,677 637 (11.2)
1997 1,195 742 109 (14.7) 14,451 1,078 (7.5) 455 35 (7.7) 8,698 435 (5.0) 286 74 (25.9) 5,708 640 (11.2)
1998 1,120 749 98 (13.1) 13,422 1,011 (7.5) 485 38 (7.8) 7,696 366 (4.8) 262 60 (22.9) 5,693 643 (11.3)
1999 1,000 669 82 (12.3) 12,660 900 (7.1) 382 25 (6.5) 7,012 284 (4.1) 284 55 (19.4) 5,596 614 (11.0)
2000 981 632 84 (13.3) 11,829 889 (7.5) 360 22 (6.1) 6,141 269 (4.4) 272 62 (22.8) 5,659 617 (10.9)
2001 897 629 87 (13.8) 11,518 800 (6.9) 324 28 (8.6) 5,571 241 (4.3) 302 59 (19.5) 5,911 558 (9.4)
2002 913 570 80 (14.0) 10,823 826 (7.6) 303 23 (7.6) 5,060 206 (4.1) 265 57 (21.5) 5,722 619 (10.8)
2003 904 524 65 (12.4) 10,755 823 (7.7) 253 16 (6.3) 4,854 213 (4.4) 271 49 (18.1) 5,871 606 (10.3)
2004 872 538 64 (11.9) 10,484 801 (7.6) 274 15 (5.5) 4,683 214 (4.6) 264 49 (18.6) 5,791 587 (10.1)
2005 842 507 70 (13.8) 10,064 761 (7.6) 240 18 (7.5) 4,394 188 (4.3) 267 52 (19.5) 5,653 567 (10.0)
2006 845 494 67 (13.6) 9,909 770 (7.8) 204 9 (4.4) 4,125 173 (4.2) 289 57 (19.7) 5,768 596 (10.3)
2007 798 496 71 (14.3) 9,656 715 (7.4) 206 14 (6.8) 3,849 163 (4.2) 288 57 (19.8) 5,764 549 (9.5)
2008 835 429 57 (13.3) 9,310 774 (8.3) 170 13 (7.6) 3,647 188 (5.2) 259 44 (17.0) 5,657 585 (10.3)
2009 762 343 52 (15.2) 8,228 699 (8.5) 116 6 (5.2) 3,091 192 (6.2) 226 46 (20.4) 5,129 507 (9.9)
2010 692 360 63 (17.5) 7,789 622 (8.0) 131 13 (9.9) 2,925 165 (5.6) 229 50 (21.8) 4,858 457 (9.4)
2011 753 343 59 (17.2) 7,534 687 (9.1) 135 9 (6.7) 2,688 172 (6.4) 208 50 (24.0) 4,843 515 (10.6)
2012 686 356 55 (15.4) 7,076 631 (8.9) 127 8 (6.3) 2,515 146 (5.8) 229 47 (20.5) 4,561 485 (10.6)
2013 675 300 48 (16.0) 6,856 622 (9.1) 98 8 (8.2) 2,278 131 (5.8) 202 40 (19.8) 4,573 491 (10.7)
2014 688 336 63 (18.8) 6,736 621 (9.2) 94 5 (5.3) 2,175 162 (7.4) 242 58 (24.0) 4,557 459 (10.1)
2015 685 318 51 (16.0) 6,955 633 (9.1) 100 7 (7.0) 2,188 150 (6.9) 218 44 (20.2) 4,762 482 (10.1)
2016 651 302 57 (18.9) 6,717 590 (8.8) 83 7 (8.4) 2,051 122 (5.9) 219 50 (22.8) 4,661 468 (10.0)
2017 635 277 54 (19.5) 6,587 577 (8.8) 58 3 (5.2) 1,848 105 (5.7) 219 51 (23.3) 4,735 471 (9.9)
2018 641 289 53 (18.3) 6,550 584 (8.9) 57 7 (12.3) 1,866 104 (5.6) 232 46 (19.8) 4,683 480 (10.2)
2019 643 272 37 (13.6) 6,468 601 (9.3) 59 4 (6.8) 1,789 118 (6.6) 213 33 (15.5) 4,673 483 (10.3)
2020 456 213 31 (14.6) 5,216 419 (8.0) 41 3 (7.3) 1,411 67 (4.7) 172 28 (16.3) 3,788 349 (9.2)

1Resistance to at least isoniazid among cases with susceptibility testing complete for at least isoniazid and rifampin. Excludes cases with susceptibility testing not done or unknown for isoniazid or rifampin. Isolates may be resistant to other drugs.
2This column provides an overall total of all INH-resistant cases, including those where previous history of TB is unknown and origin of birth is unknown.
3Excludes cases where previous history of TB is unknown and cases where origin of birth is unknown.
4Includes persons born outside the United States (including the U.S. territories), except persons born to at least one U.S. citizen parent.

Note: Data for all years updated through June 14, 2021.