Table 2.
Proportion of clustered strains and cluster sizes by lineage and location, September 2012–April 2016.
| Lineage | Location | Total Isolates | Total Clusters | Clustered Isolates n (%) |
Cluster Size Range | Cluster Size Median | Cluster Size IQR |
|---|---|---|---|---|---|---|---|
| Euro-American | Gaborone | 1277 | 184 | 934 (73.1) | 2–89 | 3 | 2–4 |
| Ghanzi | 382 | 41 | 321 (84.0) | 2–150 | 3 | 2–4 | |
| East Asian | Gaborone | 105 | 14 | 82 (78.1) | 2–25 | 3.5 | 2–6 |
| Ghanzi | 13 | 2 | 8 (61.5) | 2–6 | 4 | 2–6 | |
| Indo-Oceanic | Gaborone | 94 | 12 | 50 (53.2) | 2–12 | 2 | 2–6 |
| Ghanzi | 4 | 0 | 0 | – | – | – | |
| East African-Indian | Gaborone | 12 | 3 | 10 (83.3) | 2–4 | 4 | 2–4 |
| Ghanzi | 0 | 0 | – | – | – | – | |
| Unknown | Gaborone | 35 | 2 | 32 (91.4) | 15–17 | 16 | 15–17 |
| Ghanzi | 1 | 0 | 0 | – | – | – | |
| M. bovis | Gaborone | 1 | 0 | 0 | 1 | N/A | N/A |
| Ghanzi | 0 | 0 | – | N/A | N/A | N/A |