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Occurrence of Campylobacter Spp. and Phenotypic Antimicrobial Resistance Profiles of Campylobacter Jejuni in Slaughtered Broiler Chickens in North-Western Romania

Abstract

Campylobacteriosis is recognized as one of the most common food-borne zoonoses, with worldwide distribution, having undercooked poultry meat and other cross-contaminated foodstuffs as the main sources of human infections. The current study aimed to provide data on the occurrence of the thermophilic spp. in seven broiler chicken flocks, from three north-western Transylvanian counties of Romania, as well as to determine the antimicrobial resistance profile of the isolated strains. A total of 324 fresh cecal samples were collected during the slaughtering process, and screened for the presence of spp., using routine microbiological and molecular diagnostic tools. Overall, 85.2% (276/324; 95% CI 80.9-88.6) of the tested samples expressed positive results for spp., with dominant occurrence of towards (63.4% vs. 36.6%). From the six tested antimicrobials, the 101 isolated strains were resistant against ciprofloxacin (79.2%), nalidixic acid (78.2%), tetracycline (49.5%), and streptomycin (7.9%), but total susceptibility was noticed against erythromycin and gentamicin. Seven (6.9%) isolates exhibited multidrug resistance. The study results emphasize the role of broiler chicken as reservoir of infections for humans, as well as strengthen the necessity of the prudent using of antimicrobials in the poultry industry.

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