Reported Tuberculosis in the United States, 2021

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Table 52. Tuberculosis Cases and Percentages Estimated to be Attributed to Recent Transmission and Extensive Recent Transmission: Reporting Areas, 2020–2021

See Surveillance Slides #63 and #64.

Tuberculosis cases and percentages attributed to recent transmission and extensive recent transmission by reporting area.
Reporting area Total cases1 Cases not attributed to  recent transmission Cases attributed to recent transmission2 Cases attributed to extensive recent transmission3
No. (%) No. (%) No. (%)
United States 11,404 10,004 (87.7) 1,400 (12.3) 456 (4.0)
Alabama 134 119 (88.8) 15 (11.2) 4 (3.0)
Alaska 87 49 (56.3) 38 (43.7) 15 (17.2)
Arizona 209 191 (91.4) 18 (8.6) 0 (0.0)
Arkansas 95 71 (74.7) 24 (25.3) 11 (11.6)
California 2,619 2,274 (86.8) 345 (13.2) 118 (4.5)
Colorado 75 71 (94.7) 4 (5.3) 0 (0.0)
Connecticut 85 79 (92.9) 6 (7.1) 1 (1.2)
Delaware 43 27 (62.8) 16 (37.2) 11 (25.6)
District of Columbia 30 29 (96.7) 1 (3.3) 0 (0.0)
Florida 727 639 (87.9) 88 (12.1) 33 (4.5)
Georgia 348 299 (85.9) 49 (14.1) 13 (3.7)
Hawaii 150 122 (81.3) 28 (18.7) 13 (8.7)
Idaho 11 11 (100.0) 0 (0.0) 0 (0.0)
Illinois 328 303 (92.4) 25 (7.6) 1 (0.3)
Indiana 166 150 (90.4) 16 (9.6) 0 (0.0)
Iowa 61 55 (90.2) 6 (9.8) 0 (0.0)
Kansas 69 64 (92.8) 5 (7.2) 0 (0.0)
Kentucky 91 86 (94.5) 5 (5.5) 0 (0.0)
Louisiana 116 97 (83.6) 19 (16.4) 4 (3.4)
Maine 27 24 (88.9) 3 (11.1) 1 (3.7)
Maryland 220 195 (88.6) 25 (11.4) 10 (4.5)
Massachusetts 231 224 (97.0) 7 (3.0) 3 (1.3)
Michigan 148 135 (91.2) 13 (8.8) 0 (0.0)
Minnesota 182 167 (91.8) 15 (8.2) 5 (2.7)
Mississippi 64 54 (84.4) 10 (15.6) 7 (10.9)
Missouri 121 115 (95.0) 6 (5.0) 0 (0.0)
Montana 5 5 (100.0) 0 (0.0) 0 (0.0)
Nebraska 46 42 (91.3) 4 (8.7) 0 (0.0)
Nevada 97 85 (87.6) 12 (12.4) 5 (5.2)
New Hampshire 22 22 (100.0) 0 (0.0) 0 (0.0)
New Jersey 403 380 (94.3) 23 (5.7) 2 (0.5)
New Mexico 40 37 (92.5) 3 (7.5) 0 (0.0)
New York State4 252 240 (95.2) 12 (4.8) 2 (0.8)
New York City 786 666 (84.7) 120 (15.3) 46 (5.9)
North Carolina 280 235 (83.9) 45 (16.1) 18 (6.4)
North Dakota 21 21 (100.0) 0 (0.0) 0 (0.0)
Ohio 182 164 (90.1) 18 (9.9) 0 (0.0)
Oklahoma 79 62 (78.5) 17 (21.5) 8 (10.1)
Oregon 110 97 (88.2) 13 (11.8) 5 (4.5)
Pennsylvania 253 233 (92.1) 20 (7.9) 1 (0.4)
Rhode Island 18 16 (88.9) 2 (11.1) 0 (0.0)
South Carolina 125 106 (84.8) 19 (15.2) 1 (0.8)
South Dakota 21 18 (85.7) 3 (14.3) 0 (0.0)
Tennessee 136 111 (81.6) 25 (18.4) 9 (6.6)
Texas 1,427 1,192 (83.5) 235 (16.5) 103 (7.2)
Utah 30 29 (96.7) 1 (3.3) 0 (0.0)
Vermont 2 2 (100.0) 0 (0.0) 0 (0.0)
Virginia 257 240 (93.4) 17 (6.6) 1 (0.4)
Washington 276 256 (92.8) 20 (7.2) 5 (1.8)
West Virginia 12 12 (100.0) 0 (0.0) 0 (0.0)
Wisconsin 87 83 (95.4) 4 (4.6) 0 (0.0)
Wyoming 0 0 0 0

1Total 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).
2Number of cases attributed to recent transmission includes any given case with a plausible source case regardless of cluster size.
3Number 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).
4Excludes New York City.

Note: Ellipses (…) indicate that the percentage cannot be calculated, and the denominator is 0.