Results 241 to 250 of about 57,232 (279)

NEWCASTLE DISEASE VIRUS IN WATERFOWL IN WISCONSIN

Journal of Wildlife Diseases, 1982
Newcastle disease virus was isolated from the cloaca of 1-5% of live-trapped waterfowl in Wisconsin in the fall from 1978-1980. Antibody to NDV was detected in 8% of the birds tested, with no apparent difference between sex and age classes. Experimental infection resulted in persistence of virus shedding for months after exposure.
R. P. Hanson, M. L. Vickers
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Chemical mutagenesis of Newcastle disease virus

Virology, 1963
Abstract In vitro treatment of wild-type Newcastle disease virus with nitrous acid produced three distinct mutations: the “red”-plaque, the small-plaque, and the minute-plaque types. The mutation from white to red character was independent of the plaque-size mutations.
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Newcastle disease virus: An evolving pathogen?

Avian Pathology, 2001
Australia experienced outbreaks of virulent Newcastle disease (ND) in chickens in the state of New South Wales in the years 1998, 1999 and 2000. The disease had occurred previously in Australia in 1930 and 1932 but the country was free of it until the recent outbreaks. Avirulent strains of Newcastle disease virus (NDV) were detected in 1966 and, during
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The avian response to Newcastle disease virus

Developmental & Comparative Immunology, 2000
Newcastle disease virus (NDV) is classified as a member of the superfamily Mononegavirales in the family Paramyxoviridae. This virus family is divided into two subfamilies, the Paramyxovirinae and the Pneumovirinae. In 1993 the International Committee on the Taxonomy of Viruses rearranged the order of the Paramyxovirus genus and placed NDV within the ...
Holly S Sellers, Bruce S. Seal, Daniel J. King   +2 more
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The Viscerotropic Pathotype of Newcastle Disease Virus

Avian Diseases, 1973
SUMMARY The viscerotropic form of Newcastle disease is defined and the history of the present panzootic of this disease is reviewed. Evidence is presented to support the concept that the viscerotropic form is genetically different from established enzootic forms of Newcastle disease.
G. S. Jacobson, Robert P. Hanson, J. Spalatin   +2 more
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The structural proteins of Newcastle disease virus

Virology, 1969
Abstract Highly purified Newcastle disease virus has been shown by acrylamide gel electrophoresis to contain three main polypeptides. The probable functional role of each polypeptide has been established by dissociating the radioactively labeled virion with detergents, then separating the resultant subunits by gradient centrifugation, and analysing ...
David O. White, Ian M. Cheyne, Elizabeth A. Haslam   +2 more
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Newcastle Disease Virus Variations

1990
Variation among Newcastle disease variations (NDV) strains has traditionally been by functional tests, e.g., virulence, thermostability of the hemagglutinin, plaguing ability. Variation has recently been described at the genetic level by gene cloning and at the antigenic level by monoclonal antibodies (MAb); in this chapter we discuss these two factors
A. C. R. Samson, D. J. Alexander, P. H. Russell   +2 more
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Inactivation of Newcastle Disease Virus by ?-propiolactone

Archives of Virology, 1976
Newcastle Disease Virus inactivated by β-propiolactone (β-PL) was found to lose RNA-dependent RNA polymerase activity. β-PL was shown to react with both virus proteins and RNA.
R. J. Avery, Barbara Garlick
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Newcastle Disease Virus Replication

1988
Newcastle disease virus (NDV) has long been known as one of the most diverse and deadly avian pathogens. The replication cycle of NDV has also been studied effectively as a prototype for the Paramyxoviridae family of negative strand RNA viruses (1). In this role, NDV has several distinct advantages. It is easy to work with in cell culture because it is
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[42] Preparation and characterization of Newcastle disease virus

1981
Publisher Summary Newcastle disease virus is a single-stranded RNA (7 million daltons), lipoprotein-enveloped paramyxovirus. The strain B1 (Hitchner) is originally isolated from a culture of infectious bronchitis virus that is passaged in eggs. The special attributes of this strain are its low toxicity to mice and its use as a vaccine for chickens ...
F.E. Campbell, Kathryn C. Zoon
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