investigating a crow die-off in january-february 2011 during the introduction of a new clade of highly pathogenic avian influenza virus h5n1 into bangladesh.we investigated unusual crow mortality in bangladesh during january-february 2011 at two sites. crows of two species, corvus splendens and c. macrorhynchos, were found sick and dead during the outbreaks. in selected crow roosts, morbidity was ~1 % and mortality was ~4 % during the investigation. highly pathogenic avian influenza virus h5n1 clade was isolated from dead crows. all isolates were closely related to a/duck/india/02ca10/2011 (h5n1) with 99.8 % and a/crow/bangladesh/11rs1984-15 ...201424081824
are poultry or wild birds the main reservoirs for avian influenza in bangladesh?avian influenza viruses (aiv) are of great socioeconomic and health concern, notably in southeast asia where highly pathogenic strains, such as highly pathogenic avian influenza (hpai) h5n1 and other h5 and h7 aivs, continue to occur. wild bird migrants are often implicated in the maintenance and spread of aiv. however, little systematic surveillance of wild birds has been conducted in southeast asia to evaluate whether the prevalence of aiv in wild birds is higher than in other parts of the wor ...201728620679
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