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Avian Influenza Outbreaks in Chickens, Bangladesh [EID CDC]

Giuseppe

Emeritus
Avian Influenza Outbreaks in Chickens, Bangladesh [EID CDC]

DOI: 10.3201/eid1412.071567

Suggested citation for this article: Biswas PK, Christensen JP, Ahmed SSU, Barua H, Das A, Rahman MH, et al. Avian influenza outbreaks in chickens, Bangladesh. Emerg Infect Dis. 2008 Dec; [Epub ahead of print]

Avian Influenza Outbreaks in Chickens, Bangladesh

Paritosh K. Biswas, Jens P. Christensen, Syed S.U. Ahmed, Himel Barua, Ashutosh Das, Mohammad H. Rahman, Mohammad Giasuddin, Abu S.M.A. Hannan, Mohammad A. Habib, Abdul Ahad, Abu S.M.S. Rahman, Rayhan Faruque, and Nitish C. Debnath - Author affilations: Chittagong Veterinary and Animal Sciences University, Chittagong, Bangladesh (P.K. Biswas, S.S.U. Ahmed, H. Barua, A. Das, M.H. Rahman, A. Ahad, R. Faruque, N.C. Debnath); Copenhagen University, Copenhagen, Denmark (J.P. Christensen); Bangladesh Livestock Research Institute, Dhaka, Bangladesh (M. Giasuddin); Department of Livestock Services, Dhaka (A.S.M.A. Hannan, M.A. Habib); and Department of Livestock Services, Joypurhat, Bangladesh (A.S.M.S. Rahman)

To determine the epidemiology of outbreaks of avian influenza A virus (subtypes H5N1, H9N2) in chickens in Bangladesh, we conducted surveys and examined virus isolates.

The outbreak began in backyard chickens.

Probable sources of infection included egg trays and vehicles from local live bird markets and larger live bird markets.

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Full text: http://www.cdc.gov/eid/content/14/12/pdfs/07-1567.pdf
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Re: Avian Influenza Outbreaks in Chickens, Bangladesh [EID CDC]

Phylogenetic analysis on 1 influenza virus (H5N1) isolate showed that it belongs to the subclade 2.2 of the Qinghai lineage ([FONT=Times New Roman,Times New Roman][FONT=Times New Roman,Times New Roman]11[/FONT][/FONT]), most closely related to viruses isolated from Afghanistan, Mongolia, and Russia ([FONT=Times New Roman,Times New Roman][FONT=Times New Roman,Times New Roman]11[/FONT][/FONT]). Therefore, the virus might have entered Bangladesh through migratory birds ([FONT=Times New Roman,Times New Roman][FONT=Times New Roman,Times New Roman]12[/FONT][/FONT]?[FONT=Times New Roman,Times New Roman][FONT=Times New Roman,Times New Roman]14[/FONT][/FONT]).
 
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