An official website of the United States government
Reported Tuberculosis in the United States, 2019
Table 59. Characteristics of Tuberculosis Cases Estimated to be Attributed to Recent Transmission and Extensive Recent Transmission: United States, 2018-2019
See Surveillance Slides #59, #60 and #61
| Case Characteristics | Total Genotyped Cases1 | Cases Not Attributed to Recent Transmission | Cases Attributed to Recent Transmission2 | Cases Attributed to Extensive Recent Transmission3 | |||
|---|---|---|---|---|---|---|---|
| No. | (%) | No. | (%) | No. | (%) | ||
| Total | 13,577 | 11,874 | (87.5) | 1,703 | (12.5) | 557 | (4.1) |
| Origin of Birth | |||||||
| U.S-born | 3,824 | 2,872 | (75.1) | 952 | (24.9) | 347 | (9.1) |
| Non-U.S.–born | 9,742 | 8,994 | (92.3) | 748 | (7.7) | 210 | (2.2) |
| Unknown or Missing | 11 | 8 | (72.7) | 3 | (27.3) | 0 | (0.0) |
| Race and Ethnicity | |||||||
| Hispanic/Latino | 3,836 | 3,351 | (87.4) | 485 | (12.6) | 117 | (3.1) |
| American Indian/Alaska Native | 149 | 89 | (59.7) | 60 | (40.3) | 30 | (20.1) |
| Asian | 5,051 | 4,679 | (92.6) | 372 | (7.4) | 133 | (2.6) |
| Black or African American | 2,638 | 2,117 | (80.3) | 521 | (19.7) | 190 | (7.2) |
| Native Hawaiian/Other Pacific Islander | 155 | 105 | (67.7) | 50 | (32.3) | 19 | (12.3) |
| White | 1,580 | 1,385 | (87.7) | 195 | (12.3) | 62 | (3.9) |
| Multiple Race | 105 | 92 | (87.6) | 13 | (12.4) | 4 | (3.8) |
| Unknown or Missing | 63 | 56 | (88.9) | 7 | (11.1) | 2 | (3.2) |
| Age Group (Years) | |||||||
| 0–4 | 118 | 71 | (60.2) | 47 | (39.8) | 7 | (5.9) |
| 5–14 | 126 | 84 | (66.7) | 42 | (33.3) | 12 | (9.5) |
| 15–24 | 1,312 | 1,118 | (85.2) | 194 | (14.8) | 43 | (3.3) |
| 25–44 | 4,063 | 3,551 | (87.4) | 512 | (12.6) | 159 | (3.9) |
| 45–64 | 4,041 | 3,437 | (85.1) | 604 | (14.9) | 228 | (5.6) |
| ≥65 | 3,917 | 3,613 | (92.2) | 304 | (7.8) | 108 | (2.8) |
| Unknown | 2 | 2 | (100.0) | 0 | (0.0) | 0 | (0.0) |
| Disease Site | |||||||
| Pulmonary Only | 9,853 | 8,531 | (86.6) | 1,322 | (13.4) | 445 | (4.5) |
| Extrapulmonary | 2,070 | 1,897 | (91.6) | 173 | (8.4) | 51 | (2.5) |
| Both | 1,650 | 1,442 | (87.4) | 208 | (12.6) | 61 | (3.7) |
| Unknown | 4 | 4 | (100.0) | 0 | (0.0) | 0 | (0.0) |
| Sputum Smear | |||||||
| Positive | 6,459 | 5,608 | (86.8) | 851 | (13.2) | 290 | (4.5) |
| Negative | 5,607 | 4,938 | (88.1) | 669 | (11.9) | 215 | (3.8) |
| Not Done | 1,494 | 1,313 | (87.9) | 181 | (12.1) | 52 | (3.5) |
| Unknown or Missing | 17 | 15 | (88.2) | 2 | (11.8) | 0 | (0.0) |
| Cavitary Disease4 | |||||||
| Yes | 157 | 137 | (87.3) | 20 | (12.7) | 3 | (1.9) |
| No | 1,102 | 961 | (87.2) | 141 | (12.8) | 49 | (4.4) |
| Unknown or Missing | 9 | 8 | (88.9) | 1 | (11.1) | 0 | (0.0) |
| Homeless Within Past Year | |||||||
| Yes | 611 | 422 | (69.1) | 189 | (30.9) | 82 | (13.4) |
| No | 12,800 | 11,314 | (88.4) | 1,486 | (11.6) | 458 | (3.6) |
| Unknown or Missing | 166 | 138 | (83.1) | 28 | (16.9) | 17 | (10.2) |
| Excess Alcohol Use Within the Past Year | |||||||
| Yes | 1,224 | 951 | (77.7) | 273 | (22.3) | 95 | (7.8) |
| No | 12,056 | 10,674 | (88.5) | 1,382 | (11.5) | 441 | (3.7) |
| Unknown or Missing | 297 | 249 | (83.8) | 48 | (16.2) | 21 | (7.1) |
| Injecting Illicit Drug Use Within Past Year | |||||||
| Yes | 170 | 124 | (72.9) | 46 | (27.1) | 16 | (9.4) |
| No | 13,125 | 11,517 | (87.7) | 1,608 | (12.3) | 517 | (3.9) |
| Unknown or Missing | 282 | 233 | (82.6) | 49 | (17.4) | 24 | (8.5) |
| Noninjecting Illicit Drug Use Within Past Year | |||||||
| Yes | 1,011 | 698 | (69.0) | 313 | (31.0) | 114 | (11.3) |
| No | 12,287 | 10,941 | (89.0) | 1,346 | (11.0) | 421 | (3.4) |
| Unknown or Missing | 279 | 235 | (84.2) | 44 | (15.8) | 22 | (7.9) |
| Resident of a Correctional Facility at the Time of Diagnosis | |||||||
| Yes | 386 | 316 | (81.9) | 70 | (18.1) | 40 | (10.4) |
| No | 13,072 | 11,458 | (87.7) | 1,614 | (12.3) | 514 | (3.9) |
| Unknown or Missing | 119 | 100 | (84.0) | 19 | (16.0) | 3 | (2.5) |
| HIV Status | |||||||
| Positive | 595 | 502 | (84.4) | 93 | (15.6) | 38 | (6.4) |
| Negative | 11,544 | 10,072 | (87.2) | 1,472 | (12.8) | 476 | (4.1) |
| Refused | 276 | 236 | (85.5) | 40 | (14.5) | 9 | (3.3) |
| Not Offered | 779 | 710 | (91.1) | 69 | (8.9) | 28 | (3.6) |
| Unknown, Missing or Indeterminate | 383 | 354 | (92.4) | 29 | (7.6) | 6 | (1.6) |
| Multidrug-Resistant TB | |||||||
| Yes | 191 | 167 | (87.4) | 24 | (12.6) | 9 | (4.7) |
| No | 12,797 | 11,189 | (87.4) | 1,608 | (12.6) | 517 | (4.0) |
| Unknown or Missing | 589 | 518 | (87.9) | 71 | (12.1) | 31 | (5.3) |
1 Total number of M. tuberculosis genotyped cases that are eligible to be evaluated for recent transmission (i.e., complete data for the plausible-source case method’s algorithm).
2 Number of cases attributed to recent transmission includes any given case with a plausible source case regardless of cluster size.
3 Number of cases attributed to extensive recent transmission includes only cases in a plausible chain of transmission of six or more cases (five secondary and one source case).
4 Cavitary disease only assessed for persons with pulmonary TB and an abnormal x-ray.
