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Newcastle Disease virus (NDV) causes severe and economically significant disease in almost all birds. However, factors that affect NDV replication in host cells are poorly understood. NDV generates long double-stranded RNA (dsRNA) molecules during transcription of single-stranded genomic RNA. Protein kinase R (PKR) is activated by dsRNA. The aim of this… (More)
BACKGROUND Newcastle disease (ND) caused by virulent Newcastle disease virus (NDV) is an acute, highly contagious and fatal viral disease affecting most species of birds. Ducks are generally considered to be natural reservoirs or carriers of NDV while being resistant to NDV strains, even those most virulent for chickens; however, natural ND cases in ducks… (More)
We report here the complete genome sequence and biological characterization of a virulent Newcastle disease virus (NDV) strain, NDV/duck/Jiangsu/JSD0812/2008, isolated from laying ducks in Jiangsu Province, China. The genome is 15,192 nucleotides in length and is classified in subgenotype VIId of genotype VII, class II.
Twenty-one, 25-day-old, artificially reared, coccidia-free goslings (Anser cygnoides var. domestica) were inoculated orally with 0.5 × 104, 1 × 104, or 100 × 104 sporulated oocysts of Eimeria anseris and sacrificed at intervals from 24 to 216 h post-inoculation (HPI). Nine uninfected goslings served as negative controls. Parts of the visceral organs from… (More)
An avian infectious bronchitis virus (IBV) was isolated and identified from a commercial layer flock vaccinated with live attenuated H120 vaccine in China, designed as ck/CH/IBTZ/2012. To determine the origination and evolution of this isolated strain, we have carried out a complete genome sequencing of this strain. The genome of the ck/CH/IBTZ/2012 strain… (More)