Table 5.
Characteristics of multidrug-resistant tuberculosis genomic clusters (n = 38).
| Number of cases in cluster | Number of cases living in the same district | Number of cases with positive sputum smear result | Number of new cases | Known risk factors (number of cases) | Epidemiologically linked | Nature of epidemiological link [number of cases] | |
| Cluster 1 | 3 | 2 | 2 | 2 | Retreatment (1) | No | |
| Cluster 2 | 3 | 2 | 3 | 2 | Retreatment (1), old (1)∗ | Yes | Household [2] |
| Cluster 3 | 3 | 0 | 3 | 1 | Retreatment (2), hospitalization (2) | Yes | Nosocomial (health center [2]) |
| Cluster 4 | 6 | 2,2 | 3 | 4 | Retreatment (2) | Probable | Social (bus [2], residence proximity [2]) |
| Cluster 5 | 3 | 3 | 2 | 1 | Retreatment (2), old (1)∗ | No | |
| Cluster 6 | 2 | 0 | 2 | 1 | Retreatment (1) | No | |
| Cluster 7 | 7 | 2,2 | 7 | 4 | Retreatment (3) | Yes | Social (community, food market [2]) |
| Cluster 8 | 2 | 0 | 2 | 1 | Retreatment (1), old (1)∗ | No | |
| Cluster 9 | 2 | 0 | 2 | 1 | Retreatment (1) | No | |
| Cluster 10 | 5 | 0 | 2 | 3 | Retreatment (2), Cook in shopping plaza (1) | Probable | Social (bus [2]) |
| Cluster 11 | 2 | 0 | 1 | 2 | Old (1)∗ | Yes | Social (former residence place [2]) |
∗
Older than 75 yrs old.