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Serological Survey of Avian Influenza (H9N2) in Commercial Ostrich Farms in Iran, 2015 | ||
| Archives of Razi Institute | ||
| مقاله 9، دوره 73، شماره 4، اسفند 2018، صفحه 325-330 اصل مقاله (246.88 K) | ||
| نوع مقاله: Short Communication | ||
| شناسه دیجیتال (DOI): 10.22092/ari.2017.108110.1081 | ||
| نویسندگان | ||
| M. H. Fallah Mehrabadi1؛ A. Bahonar* 2؛ K. Mirzaei3؛ A. Ghalyanchi Langeroudi4؛ S. A. Ghafouri5؛ F. Tehrani5؛ A. Hashemi5 | ||
| 1Department of Poultry Diseases, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran | ||
| 2Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran | ||
| 3Department of Health and Management of Poultry Diseases, Qazvin Veterinary Organization, Qazvin, Iran | ||
| 4Department of Microbiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran | ||
| 5Department of Health and Management of Poultry Diseases, Iranian Veterinary Organization. Tehran, Iran | ||
| چکیده | ||
| The aim of this study was to determine the seroprevalence of avian influenza H9N2 subtype in the industrial ostrich farms and its geographical distribution. This cross-sectional study was conducted from January to June 2015. A total of 40 farms were selected from different provinces of Iran, from each of which 11 ostriches (n=440) were sampled. The sera samples were examined using 4 hemagglutination units of H9N2 antigens. A frequency distribution was used to describe the responses to the survey questions. The mean titers between provinces were compared using one-way analysis of variance. According to the results, 21 (47.5%) out of 40 farms and 108 (24.5%) out of 440 ostriches tested positive in the HI-H9N2 test. There were statistically significant differences between the mean titers of samples in different provinces (P<0.001). The current study was conducted on unvaccinated ostriches. The results showed that H9N2 had a high seroprevalence at both farm and bird levels. The findings of this study can be for the further investigation of infection in ostrich farms in order to consider this species in the surveillance programs of the Iranian Veterinary Organization. The detection and isolation of viruses and epidemiological investigation are necessary for the persistent use of H9N2 vaccines in some ostrich farms. | ||
| کلیدواژهها | ||
| Ostrich؛ Seroprevalence؛ H9N2؛ Avian Influenza؛ Iran | ||
| مراجع | ||
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