Helicobacter pylori Virulence Genes Detected by String PCR in Children from an Urban Community in Northeastern Brazil
2013
The accuracy of a nested PCR in gastric DNA obtained by a string test for the diagnosis of Helicobacter pylori infection in asymptomatic children was 94.0%. The cagA-positive toxigenic vacAs1m1 strains were the most prevalent strains, indicating that this population is colonized early by the strains associated with gastric cancer.
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