From: Frequency of vacA, cagA and babA2 virulence markers in Helicobacter pylori strains isolated from Mexican patients with chronic gastritis
Genotype
Number (%)
s1m1
62 (43.4)
s1m2
35 (24.5)
s2m1
29 (20.3)
s2m2
17 (11.9)
143 (100)