Molecular Typing and Cdt Genes Prevalence of Campylobacter Jejuni Isolates from Various Sources

Overview

Journal Trop Anim Health Prod

Publisher Springer

Specialties Tropical Medicine
Veterinary Medicine

Date 2010 Nov 25

PMID 21104314

Citations 8

Authors

Arzu Findik

Tuba Ica

Ertan Emek Onuk

Duygu Percin

Tahsin Onur Kevenk

Alper Ciftci

Affiliations

Soon will be listed here.

Abstract

The genetic diversity of 168 Campylobacter jejuni isolates originating from human (n=30), cattle (n=36), sheep (n=44), dog (n=35), and poultry (n=21) and cdt genes prevalence of the isolates were investigated. To determine the genetic diversity of these strains, random amplified polymorphic DNA-polymerase chain reaction (PCR) using a random primer (M13) was performed. The numbers of genotypes determined in human, cattle, sheep, dog, and poultry isolates were 19, 18, 17, 18, and 6, respectively. To find out the prevalence of cdt genes in C. jejuni isolates simultaneously, a multiplex PCR was performed. The prevalence of the separate cdt genes was found to vary from 69% to 100% for cdtA, 92% to 100% for cdtB, and 39% to 98% for cdtC. These rates without host discriminating were 95%, 98%, and 93% for cdtA, cdtB, and cdtC, respectively. The prevalence of all three cdt genes in strains originating from human, cattle, sheep, dog, and poultry were 87%, 67%, 84%, 89%, and 39%, respectively. These results showed the relatively high genetic heterogeneity and variation of cdt genes among C. jejuni isolates from various sources except for poultry isolates. This study gives baseline data on molecular characterization of C. jejuni strains from different sources.

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