The pathogenesis of Newcastle disease: a comparison of selected Newcastle disease virus wild-type strains and their infectious clones.

Comparison of pathogenicity and immunogenicity of two strains (TCND and Montana) of Newcastle disease virus propagated in four tissue cell types

Differentiation of Virulent and Non-Virulent Newcastle Disease Virus Isolates Using RT-PCR

Newcastle disease is one of the main concerns of poultry farmers. Detection of virulent strains of Newcastle disease virus (NDV) has a great impact on control measures against the disease. In this study RT-PCR was optimized in high sensitivity in order to differentiate the virulent from non-virulent NDV isolates directly in tissue homogenates. The vaccinal NDV strain and known field isolates we...

Molecular detection of infectious bronchitis and Newcastle disease viruses in broiler chickens with respiratory signs using Duplex RT-PCR

Infectious bronchitis (IB) and Newcastle disease (ND) are highly contagious and the most economically important diseases of the poultry affecting respiratory tract and causing economic losses in poultry industry throughout the world. In the present study, the simultaneous detection and differentiation of causative agents of these diseases were investigated using duplex-RT-PCR. RNA was extracted...

Detection of specific antigens of Newcastle disease virus using an absorbed Western blotting method

Newcastle disease virus (NDV) is an economically important poultry pathogen with a worldwide distribution that may infect a wide range of domestic and wild avian species. The identification of different pathotypes of NDVs plays an important role in the diagnosis and development of vaccines to control and eradicate NDV infections. In our previous study, we showed that mono-specific antibodies ca...

Studies on the immunogenic properties of three lentogenic strains of newcastle disease virus