From: CagL polymorphisms D58/K59 are predominant in Helicobacter pylori strains isolated from Mexican patients with chronic gastritis
cagA
Positive
Negative
n = 36 (100%)
n = 14 (100%)
vacA
s1/m1
34 (94.4%)
6 (42.9%)
s1/m2
1 (2.8%)
0
s2/m2
8 (57.1%)