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Frequency of H. pylori vacA alleles in patients with PUD and NUDa
| Allele | No. of isolates
|
|||||||
|---|---|---|---|---|---|---|---|---|
| BJ (n = 23)
|
GX (n = 19)
|
SH (n = 9)
|
Total (n = 51)
|
|||||
| PUD (6) | NUD (17) | PUD (11) | NUD (8) | PUD (4) | NUD (5) | PUD (21) | NUD (30) | |
| s1a | 3 | 6 | 1 | 0 | 0 | 0 | 4 | 6 |
| s1c | 3 | 11 | 10 | 8 | 4 | 5 | 17 | 24 |
| m1 | 3 | 6 | 7 | 5 | 0 | 3 | 10 | 14 |
| m2a | 3 | 11 | 4 | 3 | 3 | 1 | 10 | 14 |
| m2b | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 2 |
Isolates were from three regional areas of China: Guangxi (GX), Beijing (BJ), and Shanghai (SH). Only isolates with single vacA s and m regions are included.
