Volume 93, Issue 4
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



The goal of this work was to assess the prevalence in a rural mestizo population and compare it to an urban population from Venezuela. The study was performed in gastric juice samples of 71 dyspeptic patients from Caracas (urban) and 39 from Tucupita (rural), in the Orinoco Delta region. was detected by amplification of 16S rRNA, , and genes in 55.0% patients from urban and 87.2% from rural populations. was found positive in 51% and 62% urban and rural patients, respectively. Non- species were not detected in the urban population, but was found in 7.7% of patients in the rural study site. Frequency values of the 16S rRNA, , and genes were higher in the rural population. The odds ratio for each gene was 15.18 for 16S rRNA, 2.34 for , 2.89 for , and 1.53 , showing significant differences except for when gene frequency was compared in both populations. These results demonstrate a higher frequency of and gastric non- infection in a rural mestizo population with low hygienic standards as compared with city dwellers, representing a potential risk for the development of gastroduodenal diseases.


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  • Received : 09 Jan 2015
  • Accepted : 20 May 2015
  • Published online : 07 Oct 2015

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