Author/Authors :
Sabaghan، Mohammad نويسنده Department of Parasitology, Faculty of Medicine, Ahvaz Jondishapour University of Medical Science, Ahvaz, Iran , , Pourmahdi Borujeni، Mahdi نويسنده Statistical and Epidemiology Department, Veterinary Faculty, Shahid Chamran University, Ahvaz, IR Iran Pourmahdi Borujeni, Mahdi , Seifi Abad Shapouri، Masoud Reza نويسنده Department of Pathobiology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran Seyfi Abad shapouri, Masoud Reza , Rasooli، Aria نويسنده Department of Clinical Studies, School of Veterinary Medicine; Shahid Chamran University of Ahvaz, Ahvaz, Iran , , Norouzi، Milad نويسنده Graduated from Faculty of Veterinary Medicine, Shahid Chamran University, Ahvaz, Iran. , , Samimi، Sayeh نويسنده Graduated from Faculty of Veterinary Medicine, Shahid Chamran University, Ahvaz, Iran. , , Mansouri، Siavash نويسنده Graduated from Faculty of Veterinary Medicine, Shahid Chamran University, Ahvaz, Iran. ,
Abstract :
زبان آبي از بيماري هاي ويروسي نشخواركنندگان بوده كه به وسيله ي نيش پشه كوليكوييدس منتقل مي گردد و قدرت پخش سريع در فواصل طولاني را دارا مي باشد. از لحاظ جغرافيايي، بيماري زبان آبي بين عرض جغرافيايي 35 درجه جنوبي و 50 درجه شمالي در دنيا گسترده شده و يكي از بيماري هايي است كه تغييرات آب و هوايي بر ميزان شيوع آن در مناطق مختلف تاثير دارد. در سال هاي اخير، توجه به بيماري زبان آبي در ميان ساير بيماري هاي ويروسي نشخواركنندگان افزايش يافته اما با توجه به اندك بودن مطالعات بر روي ويروس زبان آبي در ايران، اين مطالعه به بررسي شيوع آلودگي و شناسايي فاكتورهاي دموگرافيكي مربوط به اين ويروس در گوسفندان استان كهگيلويه و بويراحمد پرداخته است. در اين مطالعه 262 نمونه سرمي از گوسفندان به ظاهر سالم در طي سال 1390 جمع آوري شد. از روش الايزاي رقابتي به منظور بررسي حضور آنتي بادي در سرم گوسفندان استفاده گرديد. دويست و سه نمونه (48/77 درصد) از 262 نمونه مورد آزمايش نسبت به آنتي بادي ويروس زبان آبي مثبت بودند. اختلافات آماري معناداري در شيوع زبان آبي بين جنس و سن گوسفندان مشاهده شد (001/0 > p ) اما در بين فصل هاي مختلف و ميش هايي كه اخيراً سقط داشته يا زايمان آنها طبيعي بوده، اختلاف معناداري مشاهده نگرديد.
Abstract :
Bluetongue (BT) is a viral disease of ruminants transmitted by Culicoides biting midges and has the ability to spread rapidly over large distances. The disease occurs almost worldwide between latitudes approximately 35? S and 50? N. Among the numerous diseases of ruminants, BT has gained considerable importance in recent years as one of the best examples of the effects of climate change on disease spread. Sheep are major livestock species in Iran, but studies of BT have not gained the priority compared to other diseases. Thus, the objective of this study was to describe the distribution and seroprevalence of bluetongue virus (BTV) infections in sheep in Kohgiluyeh and Boyer-Ahmad province of Iran, and to identify factors associated with the exposure of these sheep to BTV infection. Sera from 262 apparently healthy sheep were collected during the year 2011. The collected sera of the animals were screened with competitive enzyme like immunosorbent assay (c-ELISA). Two hundred and three (77.48%) out of 262 sera tested were positive to BTV antibodies. Statistically significant differences were found in the seroprevalence BT, between sex and age of sheep (p < 0.001). No statistically significant differences were observed in BTV seroprevalence among different seasons, nor among recently aborted and normally delivered.
