Table 5 Phylogeographic distribution of distinct alleles of the hypervariable subset of tfs3 left flank genes
|  |  | Prevalence (%) of distinct alleles (1–5) of the four most variable tfs3 left flank genes in H. pylori populations | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Â | Â | t3_V24. (pz36) | t3_C3. (pz35) | t3_C2. (pz34) | t3_V25. (pz30) | ||||||||||||
Population | Strains (tfs3+)1 | 1 | 2 | 3 | 4 | 1 | 2 | 3 | 4 | 5 | 1 | 2 | 3 | 4 | 1 | 2 | 3 |
hpEurope | 34 | 25 (74) | 1a (3) | 5 (15) | – | 271 (79) | 1a (3) | – | 4 (12) | – | 25 (74) | – | – | 4 (12) | 21 62) | 1 (3) | 4 (12) |
hpAfrica1 | 53 | 45d (85) | – | 2b (4) | 4 (8) | 45d (85) | – | – | 2 (4) | 5 (9) | 42d (79) | – | 5 (9) | 2 (4) | 43c (81) | – | 4 (8) |
hpAfrica2 | 0 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
hpAsia2 | 5 | – | 3a (60) | 2 (40) | – | – | 2 (40) | 2b (40) | – | – | 1 (20) | 3a (60) | – | 1 (20) | 4 (80) | 1 (20) | – |
hspEAsia | 14 | – | 12d (86) | 3 (21) | – | – | 12d (86) | 2 (14) | – | – | – | 11d (79) | – | 4a (29) | 2a (14) | 11d (79) | – |
hspAmerind | 5 | 1 (20) | – | 2c (40) | 2a (40) | 1a (20) | – | – | 2a (40) | 2a (40) | – | – | 2a (40) | 2 (40) | – | – | 5d (100) |
Totals | 111 | 71 (64) | 16 (14) | 14 (13) | 6 (5) | 73 (66) | 15 (14) | 4 (4) | 8 (7) | 7 (6) | 68 (61) | 14 (13) | 7 (6) | 13 (12) | 70 (63) | 13 (12) | 13 (12) |