Detection of mutant infectious bronchitis viruses of GI-۲۳ lineage from commercial chicken flocks in Khorasan Razavi province, Iran in ۲۰۱۹

Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:

JR_IJVST-13-1_002

تاریخ نمایه سازی: 20 آذر 1400

Abstract:

Infectious bronchitis (IB), caused by infectious bronchitis virus (IBV), is one of the most important respiratory diseases in poultry. The implementation of preventive measures, including vaccination and biosecurity, is necessary for controlling the disease. To maintain biosecurity, it is important to identify the entry route of new viruses into a region and characterizing markers such as unique mutations that make viruses traceable. During a genotyping study for IBV infected commercial chicken flocks in Khorasan Razavi province, ۱۱ viruses from ۱۱ broiler and layer chicken flocks were detected in different cities by PCR. Sequencing of the S۱ partial gene followed by phylogenetic analysis showed that eight viruses can be classified in GI-۲۳ lineage (Is-Variant۲), two viruses are classified in GI-۱ lineage (Mass), and one virus is classified in GI-۱۲ lineage (۷۹۳B). Although detected viruses of GI-۲۳ lineage are originated from Iran, seven viruses have synonymous (T۹۵۴C and G۱۰۵۶A) and non-synonymous (C۷۹۷T) mutations that have not been previously reported. It was found that the new genetic changes in Iranian IBVs of GI-۲۳ lineage occurred in two different regions in Khorasan Razavi. In conclusion, this study indicates that the high prevalence of GI-۲۳ lineage viruses in Iran may enhance the chance of virus mutations and the emergence of new viral strains, so effective vaccination and biosecurity measures are required to control the virus spread.

Authors

سید الیاس طبا طبایی زاده

Mashhad Branch, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Mashhad, Iran

رضا طرقی

Mashhad Branch, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Mashhad, Iran

ناصر مرگان ازغدی

Veterinary Head Office of Khorasan Razavi, Mashhad, Iran

حمیدرضا فرزین

Mashhad Branch, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Mashhad, Iran

شهرام شرقی

Veterinary Head Office of Khorasan Razavi, Mashhad, Iran

مزگان سارانی

Mashhad Branch, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Mashhad, Iran

مجید جمشیدیان مجاور

Mashhad Branch, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Mashhad, Iran

جواد اعلمی ابرده

Veterinary Head Office of Khorasan Razavi, Mashhad, Iran

محمود قربان زاده

Veterinary Head Office of Khorasan Razavi, Mashhad, Iran

مریم ترابی

Veterinary Head Office of Khorasan Razavi, Mashhad, Iran

علیرضا صدر بزار

Mashhad Branch, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Mashhad, Iran

مجتبی فخرایی

Mashhad Branch, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Mashhad, Iran

نفیسه کیوانی راد

Veterinary Head Office of Khorasan Razavi, Mashhad, Iran

الناز وجودی

Mashhad Branch, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Mashhad, Iran

مجید خداوردی ازغدی

Veterinary Head Office of Khorasan Razavi, Mashhad, Iran

تبسم مردانی

Veterinary Head Office of Khorasan Razavi, Mashhad, Iran

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