Avian influenza and Newcastle disease

Avian influenza and Newcastle disease.

Avian influenza (AI) and Newcastle disease (ND) affect various avian species, especially domestic poultry , and are caused by type A orthomyxoviruses and type 1 avian paramyxoviruses, respectively. 1,2 Clinical manifestations of such infections vary with the virus strain, the host species, and the presence or absence of secondary environmental factors or exacerbating agents. In domestic poultry...

Vaccination of Chicks with Experimental Newcastle Disease and Avian Influenza Oilemulsion Vaccines by ln Ovo Inoculation

Newcastle disease virus expressing H5 hemagglutinin gene protects chickens against Newcastle disease and avian influenza.

Newcastle disease virus (NDV)-expressing avian influenza virus (AIV) hemagglutinin (HA) of subtype H5 was constructed by reverse genetics. A cloned full-length copy of the genome of the lentogenic NDV strain Clone 30 was used for insertion of the ORF encoding the HA of the highly pathogenic AIV isolate A/chicken/Italy/8/98 (H5N2) in the intergenic region between the NDV fusion and hemagglutinin...

Synbiotic enhances immune responses against infectious bronchitis, infectious bursal disease, Newcastle disease and avian influenza in broiler chickens

Increased susceptibility of birds to avian pathogens in intensive husbandry system has emphasized on necessity of improvement of innate and specific immune responses of birds by the fast establishment of a beneficial microflora and immune stimulator factors to guarantee healthy and low-price products. During this study, 192 one-day-old broiler chicks (Ross-380) in four groups with three replica...

Newcastle disease and other avian paramyxoviruses.

Newcastle disease (ND), caused by avian paramyxovirus serotype 1 (APMV-1) viruses, is included in List A of the Office International des Epizooties. Historically, ND has been a devastating disease of poultry, and in many countries the disease remains one of the major problems affecting existing or developing poultry industries. Even in countries where ND may be considered to be controlled, an e...