Avian Influenza Outbreaks in Chickens in Bangladesh
Author Information
Author(s): Biswas Paritosh K., Christensen Jens P., Ahmed Syed S.U., Barua Himel, Das Ashutosh, Rahman Mohammed H., Giasuddin Mohammad, Hannan Abu S.M.A., Habib Mohammad A., Ahad Abdul, Rahman Abu S.M.S., Faruque Rayhan, Debnath Nitish C.
Primary Institution: Chittagong Veterinary and Animal Sciences University, Chittagong, Bangladesh
Hypothesis
The infection probably came from chickens in nearby backyard farms due to uninvestigated deaths.
Conclusion
The primary source of avian influenza outbreaks in Bangladesh was identified as backyard chickens.
Supporting Evidence
- The outbreaks peaked on March 26, 2007, indicating a common source.
- 47% of probable virus sources were linked to egg trays and contaminated vehicles from live bird markets.
- 14 out of 20 backyard farms were located in 7 northern districts.
Takeaway
Chickens in Bangladesh got sick from a virus that spread from backyard farms, and many deaths went uninvestigated.
Methodology
Surveys and examinations of virus isolates were conducted for 55 outbreaks of avian influenza in chickens.
Limitations
Uninvestigated deaths of backyard chickens could lead to underestimation of the attack rate.
Participant Demographics
The study involved chickens from various farms in Bangladesh.
Digital Object Identifier (DOI)
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