Table 2.
Distribution of the main Mycobacterium tuberculosis lineages among foreign-born and Swiss-born TB cases, Switzerland, 2000 to 2008
| Lineagea | No. (%) of patientsb |
|
|---|---|---|
| Foreign born | Swiss born | |
| 1 | 42 (10.5) | 1 (0.8) |
| 2 | 48 (12.0) | 6 (5.1) |
| 3 | 29 (7.2) | 4 (3.4) |
| 4 | 271 (67.6) | 107 (89.9) |
| Other | 11 (2.7) | 1 (0.8) |
| Total | 401 (100.0) | 119 (100.0) |
a
Lineage 1, Indo-Oceanic lineage; lineage 2, east Asian lineage (includes Beijing strains); lineage 3, CAS/Delhi lineage; lineage 4, Euro-American lineage; other, other lineages including West African lineages.
b
Fisher's exact test; P < 0.0001.