摘要：

Avian Influenza is one of the most important public health concerns worldwide pandemic threat causing viral disease in many species including humans. The highly pathogenic avian influenza viruses of the HSNl subtype have attracted the current global attenagainst Egyptian HSNl HP AIV in conjunction withneuraminidase inhibitors (oseltamivir'" & zanamivir") as anti- influenza A virus drug therapies in chickens. One hundred and eighty one day-old broiler chicks were randomly divided into 18groups, Six groups (I-VI) of chicks were vaccinated with HSNl and o

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