| core genome haplotype diversity and vaca allelic heterogeneity of chinese helicobacter pylori strains. | the human gastric pathogen, helicobacter pylori, has co-evolved with its host and established itself in the human stomach possibly millions of years ago. therefore, the diversity of this bacterium is important in its clinical manifestations. our aim has been to evaluate the genetic diversity of 40 h. pylori clinical isolates from four different parts of china. the methods of multi-locus sequence typing and vaca allele genotyping were used to assess their genetic diversity. to discriminate mlst, ... | 2009 | 19452214 |