Article
Distribution of vacA genotypes in Helicobacter pylori strains isolated from Brazilian adult patients with gastritis, duodenal ulcer or gastric carcinoma.
FEMS immunology and medical microbiology - 12 Jul 2002
Ashour Abdussalam A R, Magalhães Paula P, Mendes Edilberto N, Collares Guilherme B, de Gusmão Valquíria R, Queiroz Dulciene M M, Nogueira Ana Margarida M F, Rocha Gifone A, de Oliveira Celso A
Abstract excerpt
This PCR-based analysis is the first molecular epidemiological study in Brazil testing Helicobacter pylori cagA and vacA distribution in adults with gastric complaints, that includes a large number of carcinoma patients. Multiple-strain infection was identified in 11/13.4% patients. vacA s1-m1 and cagA(+) genotypes were the most common in patients with a non-mixed infection. All vacA s1 strains were s1b, so...
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