| [differences of vaca alleles and caga gene positivity of helicobacter pylori strains isolated from two different countries: turkey and germany]. | helicobacter pylori strains isolated from different regions of the world or human ethnic groups exhibit some differences at certain loci. the aim of this study was to determine allelic differences of h.pylori strains isolated from two countries, turkey and germany. a total of 72 h.pylori isolates, of which 37 strains were from kocaeli province of turkey and 35 strains from hamburg, germany were included in this study. h.pylori strains had been isolated from gastric biopsies of the patients. geno ... | 2012 | 22639323 |