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Efficacy of rHVT-AI vector vaccine in broilers with passive immunity against challenge with two antigenically divergent Egyptian clade 2.2.1 HPAI H5N1 strains.
H5N1 Subtype Influenza in Birds Influenza Vaccines Vaccines, Inactivated Abstract: In countries where avian influenza has become endemic, early vaccination of layer pullets or broilers with classical ...