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Background: Virological, molecular and serological studies were carried out to determine the status of infections with avian influenza viruses (AIV) in different species of wild waterbirds in Iran during 2003-2007. Samples were collected from 1146 birds representing 45 different species with the maj...

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Bibliographic Details
Main Authors: Sasan R Fereidouni, Ortrud Werner, Elke Starick, Martin Beer, Timm C Harder, Mehdi Aghakhan, Hossein Modirrousta, Hamid Amini, Majid Kharrazian Moghaddam, Mohammad H Bozorghmehrifard, Mohammad A Akhavizadegan, Nicolas Gaidet, Scott H Newman, Saliha Hammoumi, Giovanni Cattoli, Anja Globig, Bernd Hoffmann, Mohammad E Sehati, Siamak Masoodi, Tim Dodman, Ward Hagemeijer, Shirin Mousakhani, Thomas C Mettenleiter
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
Northern Shoveler
Shoveler
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.170.7500
http://www.virologyj.com/content/pdf/1743-422X-7-43.pdf
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Summary:Background: Virological, molecular and serological studies were carried out to determine the status of infections with avian influenza viruses (AIV) in different species of wild waterbirds in Iran during 2003-2007. Samples were collected from 1146 birds representing 45 different species with the majority of samples originating from ducks, coots and shorebirds. Samples originated from 6 different provinces representative for the 15 most important wintering sites of migratory waterbirds in Iran. Results: Overall, AIV were detected in approximately 3.4 % of the samples. However, prevalence was higher (up to 8.3%) at selected locations and for certain species. No highly pathogenic avian influenza, including H5N1 was detected. A total of 35 AIVs were detected from cloacal or oropharyngeal swab samples. These positive samples originated mainly from Mallards and Common Teals. Of 711 serum samples tested for AIV antibodies, 345 (48.5%) were positive by using a nucleoprotein-specific competitive ELISA (NP-C-ELISA). Ducks including Mallard, Common Teal, Common Pochard, Northern Shoveler and Eurasian Wigeon revealed the highest antibody prevalence ranging from 44 to 75%. Conclusion: Results of these investigations provide important information about the prevalence of LPAIV in wild birds in Iran, especially wetlands around the Caspian Sea which represent an important wintering site for migratory water birds. Mallard and Common Teal exhibited the highest number of positives in virological and serological

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