Reported Tuberculosis in the United States, 2017
Table 58. Counts and Percentages of Tuberculosis Cases Estimated to be Attributed to Recent Transmission and Extensive Recent Transmission: Counties with >5 Percent Estimated Extensive Recent Transmission, 2016–2017
| Counties and County Equivalents1 | Total Genotyped Cases2 | Percentage of Genotyped Cases that are U.S.-born | Number of Unique GENTypes3 | Cases Attributed to Recent Transmission4 | Cases Attributed to Extensive Recent Transmission5 | Percentage of Cases Attributed to Extensive Recent Transmission6 |
|---|---|---|---|---|---|---|
| Arlington, VA | 19 | 5.3 | 19 | 2 | 1 | 5.3 |
| Baltimore (City), MD | 41 | 48.8 | 33 | 10 | 9 | 22.0 |
| Bergen, NJ | 36 | 19.4 | 34 | 4 | 3 | 8.3 |
| Brazoria, TX | 15 | 40.0 | 13 | 2 | 1 | 6.7 |
| Bronx, NY | 134 | 22.4 | 118 | 29 | 8 | 6.0 |
| Charleston, SC | 13 | 84.6 | 7 | 6 | 1 | 7.7 |
| Collin, TX | 37 | 21.6 | 34 | 2 | 2 | 5.4 |
| Cook, IL | 312 | 27.6 | 265 | 55 | 16 | 5.1 |
| Cuyahoga, OH | 25 | 48.0 | 24 | 2 | 2 | 8.0 |
| Dallas, TX | 259 | 48.3 | 207 | 51 | 39 | 15.1 |
| District Of Columbia | 48 | 31.3 | 37 | 14 | 7 | 14.6 |
| Duval, FL | 78 | 64.1 | 51 | 30 | 19 | 24.4 |
| Escambia, FL | 20 | 80.0 | 10 | 11 | 11 | 55.0 |
| Essex, NJ | 58 | 19.0 | 53 | 9 | 3 | 5.2 |
| Etowah, AL | 21 | 90.5 | 8 | 14 | 7 | 33.3 |
| Fulton, GA | 54 | 74.1 | 39 | 21 | 11 | 20.4 |
| Hall, GA | 11 | 81.8 | 6 | 6 | 6 | 54.5 |
| Harris, TX | 392 | 33.2 | 299 | 95 | 51 | 13.0 |
| Hidalgo, TX | 108 | 41.7 | 81 | 32 | 10 | 9.3 |
| Hinds, MS | 25 | 76.0 | 16 | 12 | 7 | 28.0 |
| Imperial, CA | 58 | 32.8 | 36 | 25 | 14 | 24.1 |
| Jefferson, AL | 23 | 73.9 | 17 | 9 | 4 | 17.4 |
| Kings, NY | 264 | 16.7 | 231 | 52 | 25 | 9.5 |
| Los Angeles, CA | 904 | 15.5 | 717 | 163 | 69 | 7.6 |
| Marin, CA | 10 | 20.0 | 7 | 4 | 3 | 30.0 |
| Montgomery, AL | 10 | 80.0 | 6 | 6 | 1 | 10.0 |
| Morris, NJ | 15 | 6.7 | 15 | 1 | 1 | 6.7 |
| Muscogee, GA | 11 | 72.7 | 7 | 5 | 5 | 45.5 |
| New York, NY | 105 | 18.1 | 101 | 21 | 6 | 5.7 |
| Nueces, TX | 20 | 55.0 | 14 | 6 | 6 | 30.0 |
| Northern (Region), AK | 11 | 81.8 | 7 | 6 | 4 | 36.4 |
| Orange, FL | 88 | 34.1 | 77 | 10 | 6 | 6.8 |
| Perry, AL | 11 | 100.0 | 2 | 10 | 10 | 90.9 |
| Ramsey, MN | 65 | 7.7 | 52 | 13 | 6 | 9.2 |
| Robeson, NC | 26 | 92.3 | 8 | 16 | 13 | 50.0 |
| San Diego, CA | 386 | 25.9 | 313 | 72 | 39 | 10.1 |
| San Joaquin, CA | 70 | 32.9 | 52 | 19 | 16 | 22.9 |
| Shelby, TN | 53 | 66.0 | 33 | 22 | 16 | 30.2 |
| Southwest (Region), AK | 38 | 97.4 | 14 | 22 | 17 | 44.7 |
| St. Louis (City), MO | 19 | 52.6 | 15 | 5 | 1 | 5.3 |
| Travis, TX | 66 | 28.8 | 58 | 12 | 6 | 9.1 |
| Tulsa, OK | 17 | 52.9 | 15 | 3 | 1 | 5.9 |
| Walker, TX | 42 | 88.1 | 20 | 24 | 15 | 35.7 |
| Washington, AR | 14 | 35.7 | 8 | 5 | 4 | 28.6 |
| Wayne, MI | 41 | 48.8 | 38 | 4 | 4 | 9.8 |
| Webb, TX | 45 | 53.3 | 33 | 18 | 6 | 13.3 |
| Yakima, WA | 14 | 42.9 | 11 | 5 | 2 | 14.3 |
1 Counties (and county equivalents) that had >5% of cases attributed to extensive recent transmission are included in table 58.
2 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).
3 Total number of unique GENTypes identified in the reporting area among all genotyped cases that are eligible to be evaluated for recent transmission.
4 Number of cases attributed to recent transmission includes any given case with a plausible source case regardless of cluster size.
5 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).
6 Proportion of cases attributed to extensive recent transmission calculated for counties with 10 or more genotyped cases.
