Susceptibility of Campylobacter jejuni and Campylobacter coli isolated from animals and humans to tetracycline


Zoran Tambur* , Biljana Miljkovic-Selimovic , Radoje Doder and Zoran Kulisic

Fifty five thermophilic Campylobacter spp. strains were isolated from cecum of broilers, cecum and colon of pigs and from human feces. The strains were identified as Campylobacter jejuni and Campylobacter coli. The more prevalent species in broilers and humans was C. jejuni and in pigs C. coli. In the framework of this study, sensitivity to tetracycline in isolated strains of C. jejuni and C. coli was tested by E-test. In 16 tested strains isolated from broilers, 56.25% were resistant to tetracycline. Resistance occured more frequent in C. coli strains (66.67%). In 15 strains of termophilic Campylobacter spp. isolated from pigs the percentage of resistant strains was 80%. Resistance was detected more often in C. coli (90.00%) isolates. The percentage of resistant C. jejuni strains from pigs was 60.00%. Resistance to tetracycline occurred in 29.17% of 24 thermophilic Campylobacter spp. strains isolated from humans. Generally, strains of thermophilic campylobacters, especially C. coli isolated in pigs are more frequent resistant to tetracycline than strains isolated in poultry and human. Therefore, attention should be directed to the tetracycline application monitoring in swine farming in order to prevent resistance appearance in animal strains and its subsequent spread to human strains.

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