Volume 12, Number 1 (Vol 12, No.1 2016)                   irje 2016, 12(1): 19-27 | Back to browse issues page


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Fallah Mehrabadi M, Bahonar A, Tehrani F, Vasfi Marandi M, Sadrzadeh A, Shabani M. Determinants and Sero-Prevalence of Avian Influenza (H5 and H7 Sub Types) in Industrial and Backyard Poultry of Iran 2014. irje. 2016; 12 (1) :19-27
URL: http://irje.tums.ac.ir/article-1-5490-en.html

1- DVM, PhD of Epidemiology, Department of Poultry Viral Diseases, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization, Karaj, Iran DVM, PhD of Epidemiology, Department of Poultry Viral Diseases, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization, Karaj, Iran
2- Professor, Department of Food Hygiene & Quality Control, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran Professor, Department of Food Hygiene & Quality Control, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran , abahonar@ut.ac.ir
3- DVM, Department of Health and Management of Poultry Diseases, Iranian Veterinary Organization. Tehran, Iran DVM, Department of Health and Management of Poultry Diseases, Iranian Veterinary Organization. Tehran, Iran
4- Professor, Department of Poultry Diseases, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran Professor, Department of Poultry Diseases, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
5- Assistant Professor, Department of Poultry Diseases, School of Veterinary Medicine, Azad University, Garmsar, Iran Assistant Professor, Department of Poultry Diseases, School of Veterinary Medicine, Azad University, Garmsar, Iran
6- MS, Department of Health and Management of Poultry Diseases, Iranian Veterinary Organization, Tehran, Iran MS, Department of Health and Management of Poultry Diseases, Iranian Veterinary Organization, Tehran, Iran
Abstract:   (3571 Views)

Background and Objectives: Influenza is an acute, highly contagious disease of a variety of both domestic and wild bird species. The aim of this study was to estimate subclinical infections or previous exposure to H5 and H7 subtypes and to discover potentially important determinants of the prevalence of this disease in industrial and backyard poultry in Iran.

Methods: A survey was conducted from September to December 2014 in Iran using a cross-sectional design throughout the entire country. The Enzyme-Linked Immunosorbent Assay (ELISA) was used as the screening test and all ELISA-positive samples were examined with the HI test to differentiate H5 and H7. A total of 1378 places and 31547 birds were sampled.

Results: One place (bird garden) out of 1378 was positive for the H7 subtype and six places (2 bird gardens, 3 villages, and 1 ostrich farm) out of 1378 were positive for the H5 subtype on HI test. The results of this study showed that the presence of a lake (OR=12.20, CI 95% 2.19-68.09) and live bird marketing (11.73, CI 95% 1.32-104.42) were risk factors for the H5 subtype.

Conclusion: Sampling migratory waterfowl birds is recommended for early detection of probable infections and preventing the spread of infection to the backyard and industrial poultry because of their role in the transmission of the disease and probability of circulation of the virus.

Full-Text [PDF 2231 kb]   (854 Downloads)    
Type of Study: Research | Subject: General
Received: 2016/06/21 | Accepted: 2016/06/21 | Published: 2016/06/21

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