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Helicobacter pylori is the most predominant bacterium in almost 50% of the world's population and colonization causes a persistent inflammatory response leading to chronic gastritis. It shows high genetic diversity and individuals generally harbour a distinct bacterial population. With the advancement of whole-genome sequencing technology, new H. pylori subpopulations have been identified that show admixture between various H. pylori strains. Genotypic variation of H. pylori may be related to the presence of virulence factors among strains and is associated with different outcomes of infection in different individuals. This review summarizes the genetic diversity in H. pylori strain populations and its virulence characteristics responsible for variable outcomes in different ethnic groups. Copyright © 2019 Elsevier B.V. All rights reserved.


Alfizah Hanafiah, Bruno S Lopes. Genetic diversity and virulence characteristics of Helicobacter pylori isolates in different human ethnic groups. Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases. 2020 Mar;78:104135

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PMID: 31837482

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