Brief Articles
Copyright ©2009 The WJG Press and Baishideng.
World J Gastroenterol. Jan 14, 2009; 15(2): 204-210
Published online Jan 14, 2009. doi: 10.3748/wjg.15.204
Table 4 Worldwide distribution of main H pylori virulence factors
World AreavacA alleles prevalence (%)
ReferencescagAprevalence (%) cagA+babA2prevalence (%) babA2+
s1s2m1m2
Europe48-8911-513763[14232627]66-73[14232627]34-72[131434]
America57-6816-4837-4429-63[192024]57-75[71924]46-69[2432]
East Asia100041-945-55[122528]90-100[12252835]80-100[122135]