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Tuberculosis (TB)





Reported Tuberculosis in the United States, 2019						Print
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Table 24. Characteristics of Tuberculosis Cases in GENType Clusters1, by Alert Levels Based on Log-Likelihood Ratios (LLR)2: United States, 2017–2019
See Surveillance Slide #56
Table 24. Characteristics of Tuberculosis Cases in GENType Clusters, by Alert Levels Based on Log-Likelihood Ratios (LLR): United States, 2017-2019
Case Characteristics
Unique
Clustered
Alert Levels for Clustered Cases3Non-alerted (LLR <5)
Medium (LLR 5 – <10)
High (LLR ≥10)No.
(%)
No.
(%)
No.
(%)
No.
(%)
No.
(%)**Total**
**16,786**
**(80.8)**
**3,977**
**(19.2)**
**2,371**
**(59.6)**
**921**
**(23.2)**
**685**
**(17.2)****Origin of Birth**U.S.-born
3,846
(66.1)
1,973
(33.9)
821
(41.6)
596
(30.2)
556
(28.2)Non-U.S.–born
12,931
(86.6)
1,998
(13.4)
1,546
(77.4)
325
(16.3)
127
(6.4)Unknown or Missing
9
(60.0)
6
(40.0)
4
(66.7)
0
(0.0)
2
(33.3)**Race and Ethnicity**Hispanic or Latino
4,657
(78.0)
1,317
(22.0)
889
(67.5)
286
(21.7)
142
(10.8)American Indian/Alaska Native
104
(45.4)
125
(54.6)
14
(11.2)
34
(27.2)
77
(61.6)Asian
6,765
(88.4)
885
(11.6)
770
(87.0)
83
(9.4)
32
(3.6)Black or African American
2,975
(73.3)
1,086
(26.7)
436
(40.1)
336
(30.9)
314
(28.9)Native Hawaiian/Other Pacific Islander
123
(54.9)
101
(45.1)
47
(46.5)
28
(27.7)
26
(25.7)White
1,980
(82.4)
423
(17.6)
195
(46.1)
142
(33.6)
86
(20.3)Multiple Race
118
(81.9)
26
(18.1)
10
(38.5)
10
(38.5)
6
(23.1)Unknown or Missing
64
(82.1)
14
(17.9)
10
(71.4)
2
(14.3)
2
(14.3)**Age Group (Years)**0–4
81
(42.0)
112
(58.0)
58
(51.8)
34
(30.4)
20
(17.9)5–14
129
(61.7)
80
(38.3)
38
(47.5)
25
(31.3)
17
(21.3)15–24
1,510
(76.6)
461
(23.4)
268
(58.1)
110
(23.9)
83
(18.0)25–44
5,022
(80.1)
1,247
(19.9)
704
(56.5)
299
(24.0)
244
(19.6)45–64
4,853
(78.1)
1,364
(21.9)
782
(57.3)
331
(24.3)
251
(18.4)≥65
5,191
(87.9)
713
(12.1)
521
(73.1)
122
(17.1)
70
(9.8)Unknown
5
(100.0)
0
(0.0)
0
(0.0)
0
(0.0)
0
(0.0)**Disease Site**Pulmonary Only
11,814
(79.0)
3,134
(21.0)
1,837
(58.6)
737
(23.5)
560
(17.9)Extrapulmonary
2,874
(87.8)
401
(12.2)
259
(64.6)
89
(22.2)
53
(13.2)Both
2,092
(82.6)
442
(17.4)
275
(62.2)
95
(21.5)
72
(16.3)Unknown
26
(68.4)
12
(31.6)
10
(83.3)
0
(0.0)
2
(16.7)**Sputum Smear**Positive
7,662
(78.2)
2,139
(21.8)
1,238
(57.9)
511
(23.9)
390
(18.2)Negative
7,113
(83.1)
1,449
(16.9)
912
(62.9)
312
(21.5)
225
(15.5)Not Done
1,993
(83.8)
385
(16.2)
220
(57.1)
95
(24.7)
70
(18.2)Unknown or Missing
18
(81.8)
4
(18.2)
1
(25.0)
3
(75.0)
0
(0.0)**Cavitary Disease4**Yes
178
(81.3)
41
(18.7)
27
(65.9)
8
(19.5)
6
(14.6)No
1,416
(81.8)
316
(18.2)
194
(61.4)
69
(21.8)
53
(16.8)Unknown or Missing
7
(63.6)
4
(36.4)
1
(25.0)
2
(50.0)
1
(25.0)**Homeless Within Past Year**Yes
589
(60.7)
382
(39.3)
166
(43.5)
105
(27.5)
111
(29.1)No
16,036
(81.8)
3,558
(18.2)
2,189
(61.5)
810
(22.8)
559
(15.7)Unknown or Missing
161
(81.3)
37
(18.7)
16
(43.2)
6
(16.2)
15
(40.5)**Excess Alcohol Use Within the Past Year**Yes
1,295
(67.6)
621
(32.4)
269
(43.3)
182
(29.3)
170
(27.4)No
15,188
(82.3)
3,261
(17.7)
2,047
(62.8)
720
(22.1)
494
(15.1)Unknown or Missing
303
(76.1)
95
(23.9)
55
(57.9)
19
(20.0)
21
(22.1)**Injecting Illicit Drug Use Within Past Year**Yes
160
(63.5)
92
(36.5)
48
(52.2)
25
(27.2)
19
(20.7)No
16,348
(81.2)
3,791
(18.8)
2,271
(59.9)
876
(23.1)
644
(17.0)Unknown or Missing
278
(74.7)
94
(25.3)
52
(55.3)
20
(21.3)
22
(23.4)**Non-Injecting Illicit Drug Use Within Past Year**Yes
892
(58.3)
637
(41.7)
274
(43.0)
164
(25.7)
199
(31.2)No
15,610
(82.7)
3,260
(17.3)
2,051
(62.9)
742
(22.8)
467
(14.3)Unknown or Missing
284
(78.0)
80
(22.0)
46
(57.5)
15
(18.8)
19
(23.8)**Resident of a Correctional Facility at the Time of Diagnosis**Yes
435
(72.6)
164
(27.4)
78
(47.6)
37
(22.6)
49
(29.9)No
16,241
(81.1)
3,782
(18.9)
2,272
(60.1)
878
(23.2)
632
(16.7)Unknown or Missing
110
(78.0)
31
(22.0)
21
(67.7)
6
(19.4)
4
(12.9)**HIV Status**Positive
741
(77.3)
218
(22.7)
110
(50.5)
49
(22.5)
59
(27.1)Negative
14,146
(80.4)
3,455
(19.6)
2,063
(59.7)
804
(23.3)
588
(17.0)Refused
357
(85.4)
61
(14.6)
43
(70.5)
14
(23.0)
4
(6.6)Not Offered
1,041
(84.4)
192
(15.6)
117
(60.9)
44
(22.9)
31
(16.1)Unknown, Missing, or Indeterminate
501
(90.8)
51
(9.2)
38
(74.5)
10
(19.6)
3
(5.9)**Multidrug-Resistant TB**Yes
259
(81.4)
59
(18.6)
39
(66.1)
3
(5.1)
17
(28.8)No
15,824
(80.8)
3,772
(19.2)
2,252
(59.7)
887
(23.5)
633
(16.8)Unknown or Missing
703
(82.8)
146
(17.2
80
(54.8)
31
(21.2)
35
(24.0)Show More
Show More1GENType clusters have two or more cases with matching spoligotype and 24-locus mycobacterial interspersed repetitive unit-variable number tandem repeat type (MIRU-VNTR) within a county during the specified 3-year time period.2Alert levels are based on a log-likelihood ratio (LLR), which calculates the geographical concentration of a genotype in a county compared to the rest of the country during a 3-year period.3There were 3,977 cases in 1,351 clusters: 685 cases were in 79 (5.8%) high alert clusters; 921 cases were in 309 (22.9%) medium alert clusters, and 2,371 cases were in 963 (71.3%) non-alert clusters.4Cavitary disease only assessed for persons with pulmonary TB and an abnormal x-ray.
**Note:** Case counts for race categories (American Indian/Alaska Native, Asian, Black/African American, Native Hawaiian/Other Pacific Islander, and White) are mutually exclusive and do not include persons of Hispanic ethnicity or multiple race. Multiple race does not include persons of Hispanic ethnicity.Table Printing Tips
							
					
							Last Reviewed:  October 26, 2020						Source: 	Division of Tuberculosis Elimination, National Center for HIV, Viral Hepatitis, STD, and TB Prevention, Centers for Disease Control and Prevention
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