Reported Tuberculosis in the United States, 2012
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Table 24. Tuberculosis Cases and Clusters by Cluster Size1: United States, 2010–2012
| Cluster Status | Clusters | Cases2 | ||
|---|---|---|---|---|
| No. | (%)3 | No. | (%)4 | |
Total | 1,542 | (100.0) | 4,723 | (100.0) |
2-case cluster | 996 | (64.6) | 1,992 | (42.2) |
3-case cluster | 257 | (16.7) | 771 | (16.3) |
4–9 case cluster | 250 | (16.2) | 1,272 | (26.9) |
10–19 case cluster | 30 | (2.0) | 365 | (7.7) |
≥20 case cluster | 9 | (0.6) | 323 | (6.8) |
1 Clusters have two or more cases with matching spoligotype and 24-locus locus mycobacterial interspersed repetitive unit-variable number tandem repeat type (GENType) within a county during the specified 3-year time period.
2 Cases with matching spoligotype and 24-locus locus mycobacterial interspersed repetitive unit-variable number tandem repeat type (GENType) are members of a cluster within a county during the specified 3-year time period.
3 Denominator is total number of clusters
4 Denominator is total number of cases
- Page last reviewed: September 16, 2013
- Page last updated: January 29, 2014
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