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Contemporary population structure of Shanghai H. pylori isolates (H. pylori-Shi) largely overlaps with that of the entire East Asia (EAsia) cluster with minimal infusion of broader Eurasian clusters
The population structure of 112 H. pylori-Shi was analyzed by comparing the sequences of seven housekeeping genes with other 120 comparative sequences belonging to the 10 major population clusters. Most H. pylori-Shi isolates are clustered within the EAsia group.
