From: Beyond Maastricht IV: are standard empiric triple therapies for Helicobacter pylori still useful in a South-European country?
Genotype
Group A
Group B
(n = 103)
(n = 51)
cagA positive
44 (42.7%)
10 (19.6%)
vacA s1m1
24 (23.3%)
4 (7.8%)
vacA s1m2
28 (27.2%)
12 (23.5%)
vacA s2m1
1 (1%)
2 (3.9%)
vacA s2m2
50 (48.5%)
33 (64.7%)