Co-circulation of avian influenza viruses in commercial farms, backyards and
Cloacal and tracheal swab-samples were collected from commercial farms, backyards and live market birds (LBM) to identify the potential existence and genetic drifts of avian influenza subtypes (AI) H5 and H9 that are circulating among bird species in Egypt. The results revealed that, one sample out...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2014-12-01
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| Series: | International Journal of Veterinary Science and Medicine |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2314459914000258 |
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| author | H.A. Kaoud H.A. Hussein A.R. El-Dahshan H.S. Kaliefa M.A. Rohaim |
| author_facet | H.A. Kaoud H.A. Hussein A.R. El-Dahshan H.S. Kaliefa M.A. Rohaim |
| author_sort | H.A. Kaoud |
| collection | DOAJ |
| description | Cloacal and tracheal swab-samples were collected from commercial farms, backyards and live market birds (LBM) to identify the potential existence and genetic drifts of avian influenza subtypes (AI) H5 and H9 that are circulating among bird species in Egypt. The results revealed that, one sample out of 50 samples of chicken commercial farms was positive for the isolation of subtype H9N2 [KC699549, Influenza A virus: A/chicken/Egypt/VRLCU-R33/2012(H9N2)]; from Sharkeia province. Two samples out of 20 samples of Backyard ducks were positive for the isolation of 2 subtypes H5N1; [KC699547, Influenza A virus: A/duck/Egypt/VRLCU-R11/2012(H5N1), “backyard duck”] from El-Fayoum province and the other from Giza province [A/duck/Egypt/VRLCU-R28/2012(H5N1), “backyard duck”]. Analysis of haemagglutinin (HA) and the phylogenetic tree of the isolated viruses (H5N1) were fallen within the clade 2.2.1.1. Antigenic cartography for the isolated Egyptian H9N2 AI virus can intuitively be of group-B. The number of mutations in the amino acid sites (33, 47, 65, 90, 92, 143, and 150) and the Long Branch observed in the phylogenetic tree may suggest a rather long evolution period. The sequenced H9N2 Egyptian virus in the study was closely related to the previous Egyptian isolates. |
| first_indexed | 2024-12-20T15:50:36Z |
| format | Article |
| id | doaj.art-c2d1939cd9574abfb04feee7069d7c53 |
| institution | Directory Open Access Journal |
| issn | 2314-4599 |
| language | English |
| last_indexed | 2024-12-20T15:50:36Z |
| publishDate | 2014-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | International Journal of Veterinary Science and Medicine |
| spelling | doaj.art-c2d1939cd9574abfb04feee7069d7c532022-12-21T19:34:42ZengTaylor & Francis GroupInternational Journal of Veterinary Science and Medicine2314-45992014-12-012211412110.1016/j.ijvsm.2014.09.001Co-circulation of avian influenza viruses in commercial farms, backyards andH.A. Kaoud0H.A. Hussein1A.R. El-Dahshan2H.S. Kaliefa3M.A. Rohaim4Department of Veterinary Hygiene and Environmental Pollution, Faculty of Veterinary Medicine, Cairo University, EgyptDepartment of Virology, Faculty of Veterinary Medicine, Cairo University, EgyptDepartment of Veterinary Hygiene and Environmental Pollution, Faculty of Veterinary Medicine, Cairo University, EgyptDepartment of Veterinary Hygiene and Environmental Pollution, Faculty of Veterinary Medicine, Cairo University, EgyptDepartment of Virology, Faculty of Veterinary Medicine, Cairo University, EgyptCloacal and tracheal swab-samples were collected from commercial farms, backyards and live market birds (LBM) to identify the potential existence and genetic drifts of avian influenza subtypes (AI) H5 and H9 that are circulating among bird species in Egypt. The results revealed that, one sample out of 50 samples of chicken commercial farms was positive for the isolation of subtype H9N2 [KC699549, Influenza A virus: A/chicken/Egypt/VRLCU-R33/2012(H9N2)]; from Sharkeia province. Two samples out of 20 samples of Backyard ducks were positive for the isolation of 2 subtypes H5N1; [KC699547, Influenza A virus: A/duck/Egypt/VRLCU-R11/2012(H5N1), “backyard duck”] from El-Fayoum province and the other from Giza province [A/duck/Egypt/VRLCU-R28/2012(H5N1), “backyard duck”]. Analysis of haemagglutinin (HA) and the phylogenetic tree of the isolated viruses (H5N1) were fallen within the clade 2.2.1.1. Antigenic cartography for the isolated Egyptian H9N2 AI virus can intuitively be of group-B. The number of mutations in the amino acid sites (33, 47, 65, 90, 92, 143, and 150) and the Long Branch observed in the phylogenetic tree may suggest a rather long evolution period. The sequenced H9N2 Egyptian virus in the study was closely related to the previous Egyptian isolates.http://www.sciencedirect.com/science/article/pii/S2314459914000258Avian influenzaH5N1H9N2BackyardsLive bird marketsGenetic drifts |
| spellingShingle | H.A. Kaoud H.A. Hussein A.R. El-Dahshan H.S. Kaliefa M.A. Rohaim Co-circulation of avian influenza viruses in commercial farms, backyards and International Journal of Veterinary Science and Medicine Avian influenza H5N1 H9N2 Backyards Live bird markets Genetic drifts |
| title | Co-circulation of avian influenza viruses in commercial farms, backyards and |
| title_full | Co-circulation of avian influenza viruses in commercial farms, backyards and |
| title_fullStr | Co-circulation of avian influenza viruses in commercial farms, backyards and |
| title_full_unstemmed | Co-circulation of avian influenza viruses in commercial farms, backyards and |
| title_short | Co-circulation of avian influenza viruses in commercial farms, backyards and |
| title_sort | co circulation of avian influenza viruses in commercial farms backyards and |
| topic | Avian influenza H5N1 H9N2 Backyards Live bird markets Genetic drifts |
| url | http://www.sciencedirect.com/science/article/pii/S2314459914000258 |
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