The Prevalence of Shiga Toxin-Producing and Enteropathogenic Isolated from Raw Chicken Meat Samples
Overview
Affiliations
Background: Shiga toxin-producing (STEC) is known as a crucial zoonotic food-borne pathogen. A total of 257 raw chicken meat samples were collected from different markets in Hamadan, west of Iran, from January 2016 to May 2017.
Materials And Methods: The samples were cultured in selective and differential culture media, and the virulence genes of isolates were analyzed by PCR assay. The antibiotic resistance patterns of isolates were determined by the disk diffusion method. The genetic relatedness of the O157 isolates was analyzed by ERIC-PCR.
Results: In total, 93 (36% ± 3.12) of the isolates were identified as in this study. Based on serological and microbiological tests, 36 (38.7% ± 9.9), 7 (7.5% ± 5.35), and 12 (12.9% ± 6.81) of the isolates were characterized as STEC, enteropathogenic (EPEC), and attaching and effacing (AEEC) strains, respectively. A high level of resistance to nalidixic acid (91.4% ± 5.7), tetracycline (89.2% ± 6.31), ampicillin (82.8% ± 7.67), and trimotoprime-sulfametoxazole (71% ± 9.22) was detected among the isolates. The analysis of the ERIC-PCR results showed five different ERIC types among the O157 isolates.
Conclusions: Based on our findings, control and check-up of poultry meats should be considered as a crucial issue for public health.
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