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Table 2 Prevalence of cagA related to the main allelic combinations of vacA.

From: cagA and vacA in strains of Helicobacter pylori from ulcer and non-ulcerative dyspepsia patients

Gastroduodenal condition cagA+ cagA-
  s1m1 s1m2 s2m2 s1m1 s1m2 s2m2
Ulcers * 13 (52%) 0 2 (8%) 0 1 (4%) 8 (32%)
NUD ** 10 (26%) 3 (8%) 7 (18%) 4 (11%) 2 (5%) 11 (29%)
  1. *Strains isolated from ulcer patients (N = 25) **Strains isolated from NUD patients (N = 38)