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This investigation aimed to identify the cause of high mortality in waterfowl due to H5N1 and assess associated human infections.

Unusually High Mortality in Waterfowl Caused by Highly Pathogenic Avian Influenza A(H5N1) in Bangladesh

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Investigation reveals high mortality from H5N1 in waterfowl, linking to potential human infections.

This investigation aimed to identify the cause of high mortality in waterfowl due to H5N1 and assess associated human infections.
Conducted a survey in six villages in Netrokona district, Bangladesh.
Collected and tested swabs from poultry and humans using real-time RT-PCR.
Examined tissue samples by histopathology and immunohistochemistry for viral detection.
61% of surveyed chickens, 47% of ducks, and 73% of geese died within 14 days of investigation.
80% of sick poultry tested positive for influenza A/H5, with a sequence identifying clade 2.3.2.1a.
Identified ten human cases with symptoms compatible with influenza-like illness; however, none were H5 positive.

Haider et al. (2015) studied this question.

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