کلستریدیوم دیفیسیل توکسین‌زا در قطعات گوشت مرغ بسته‌بندی شده و گله‌های جوجه‌های گوشتی در شمال شرق ایران

نوع مقاله : مقاله کامل

نویسندگان

چکیده

این مطالعه به منظور بررسی وقوع کلستریدیوم دیفیسیل در جوجه‌های گوشتی مزارع و قطعات مرغ بسته‌بندی شده در مشهد، دومین کلان شهر زیارتی اسلامی پس از مکه، در شمال شرق ایران طراحی شده است. نمونه مدفوع تازه از مزارع گوشتی، و نمونه‌برداری از گردن، ران، و بال بسته‌بندی شده در مراکز خرده فروشی سطح شهر، انجام شد. سپس کشت انتخابی برای جداسازی کلستریدیوم دیفیسیل انجام شد. از 40 نمونه تجمعی مدفوع تازه و 65 نمونه قطعات بسته‌بندی شده مرغ، 14 (35٪) و 10 نمونه (3/15٪) به ترتیب مثبت بودند. تعدادی 7 نمونه از جدایه‌های قطعات مرغ بسته‌بندی (70٪) و 5 نمونه از جدایه‌های مدفوع (36٪) به روش ردیابی مولکولی به عنوان مولد سم (A، B و توکسین دوتایی) شناخته شدند. از 14 جدا شده از مدفوع، تعداد پنج نمونه واجد زهرابه A و زهرابه B بوده ولی هیچ یک از آن‌ها واجد توکسین دوتایی نبودند. نتایج حاصل از این پژوهش نشان داد که جوجه‌های گوشتی می‌توانند به عنوان یک منبع بالقوه کلستریدیوم دیفیسیل مطرح باشند و انسان ممکن است از طریق تماس و یا مصرف گوشت مرغ در معرض آلودگی قرار بگیرد. اگرچه ارتباط آلودگی مواد غذایی با کلستریدیوم دیفیسیل هنوز به طور کامل مشخص نیست اما تولیدات طیور باید به عنوان یک منبع بالقوه عفونت، مورد بررسی بیشتری قرار گیرد.

کلیدواژه‌ها


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