A Survey of Avian Influenza in Wild Birds and Domestic Ducks in Bangladesh (original) (raw)

Abstract

Wild waterfowl are the natural reservoirs for avian influenza viruses and responsible for persistence of these viruses in the wild. Freshwater wetlands (haors) in northern Bangladesh provide habitat for resident and migratory wild birds and domestic ducks during the cold season from November to March. The Bay of Bengal’s coastal areas are also wintering grounds for migratory birds. We conducted a study of wild birds and domestic ducks in these areas to assess the presence of avian influenza viruses. Methods: We sampled wild birds from Hakaluki and Tanguar haors in two districts of northern Bangladesh and two coastal sandbars near Sonadia Island in southeastern Bangladesh. We used mist nets, noose traps and dazzling to capture these wild birds. We collected oropharyngeal and cloacal swabs from each bird in viral transport media (VTM). Cloacal swabs were also abtainedfrom domestic ducks (Anas platyrhynchos) from Hakaluki haor. Swab samples were tested by real time reverse transcriptas...

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