Table 2.
Results of VNTR-7 genotyping on 14 isolates with mixed infections, Songjiang and Chongming districts in Shanghai, 2006.
| Isolate number | Repeat numbers of VNTR locus | Number of polymorphic alleles per isolate |
Strain of M. tuberculosis by DTM-PCR* |
||||||
|---|---|---|---|---|---|---|---|---|---|
| Mtub21 | QUB-18 | QUB-11a | QUB-11b | MIRU26 | VNTR3820 | QUB-26 | |||
| 1 | 5 | 9 | 27, 29 | 6 | 7 | 13 | 8 | 1 | Beijing |
| 2 | 4 | 12 | 27, 5 | 6 | 8 | 9 | 8 | 1 | Beijing |
| 3 | 5 | 11 | 5, 8 | 5 | 7 | 16 | 9 | 1 | Beijing |
| 4 | 1 | 8 | 5, 10 | 7 | 7 | 5 | 3 | 1 | Beijing |
| 5 | 5 | 9 | 5 | 5 | 6, 8 | 16 | 5 | 1 | Beijing |
| 6 | 5 | 7 | 8 | 6 | 8 | 16, 14 | 8 | 1 | Beijing |
| 7 | 5 | 4 | 1, 4 | 6 | 7 | 13 | 9 | 1 | Beijing |
| 8 | 1 | 1 | no alleles | 6 | 3 | 4 | 9, 6 | 1 | Non-Beijing |
| 9 | 2 | 6 | 25, 2 | 3 | 3 | 4 | 3 | 1 | Non-Beijing |
| 10 | 3 | 6 | 5 | 3 | 5, 3 | 6 | 7 | 1 | Non-Beijing |
| 11 | 2 | 1 | 7, 9 | 5 | 8 | 4 | 5 | 1 | Non-Beijing |
| 12 | 1 | 1 | 5, 4 | 5 | 5 | 4 | 8 | 1 | Non-Beijing |
| 13 | 17, 1 | 1 | 5 | 4 | 4 | 5, 7 | 9 | 2 | Non-Beijing |
| 14 | 3, 4 | 6 | 7 | 3 | 6 | 5 | 8, 10 | 2 | Beijing and non-Beijing |
| Number of isolates with polymorphic alleles | 2 | 0 | 8 | 0 | 2 | 2 | 2 | ||
*
DTM-PCR = Deletion-Targeted Multiplex-PCR.