Journal ArticleDOI
Potency of live Newcastle disease vaccines.
Thornton Dh,Hopkins Ig,Hebert Cn +2 more
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TLDR
A comparison was made of the potency of live lentogenic Newcastle disease vaccines using a multipoint challenge assay and in general, La Sota vaccines gave better protection than B1 vaccines and both were superior to products made from the Ulster 2C strain.Abstract:
Summary A comparison was made of the potency of live lentogenic Newcastle disease vaccines using a multipoint challenge assay. In general, La Sota vaccines gave better protection than B1 vaccines and both were superior to products made from the Ulster 2C strain. However, variation was found within products prepared from the same strains, depending on their source. Two novel types of vaccine derived from the conventional B1 or La Sota strains were as protective as La Sota vaccines and a third gave protection similar to that of B1 vaccines.read more
Citations
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Journal ArticleDOI
Diagnostic and Vaccination Approaches for Newcastle Disease Virus in Poultry: The Current and Emerging Perspectives.
Muhammad Bashir Bello,Muhammad Bashir Bello,Khatijah Yusoff,Aini Ideris,Mohd Hair-Bejo,Ben Peeters,Abdul Rahman Omar +6 more
TL;DR: A comprehensive description of the current and emerging trends in the detection, identification, and control of ND in poultry are provided and next-generation sequencing technologies have so far proven to be promising in terms of rapid, sensitive, and accurate recognition of virulent Newcastle disease virus isolates even in mixed infections.
Book ChapterDOI
Control by Vaccination
TL;DR: The control of Newcastle disease (ND) is based on complementary hygienic and medical measures, and full protection can only be assured if vaccination programmes are combined with commonsense hyGienic precautions.
Journal ArticleDOI
Ultrastructural changes of the tracheal epithelium after vaccination of day-old chickens with the La Sota strain of Newcastle disease virus.
TL;DR: Because the observed vaccination-induced lesions are detrimental to epithelial integrity and function as a barrier against invading microorganisms, they might explain at the ultrastructural level the secondary complications of vaccination with the La Sota strain against Newcastle disease virus.
Journal ArticleDOI
Determination of the distribution of lentogenic vaccine and virulent Newcastle disease virus antigen in the oviduct of SPF and commercial hen using immunohistochemistry.
TL;DR: Results showed that La Sota vaccine offered birds 100% protection against the virulent ND (GPMV) virus challenge from clinical disease and death, but not against infection and replication of the GPMV, as birds showed varying degrees of macropathology.
Journal ArticleDOI
An Ulster 2C strain-derived Newcastle disease vaccine: efficacy and excretion in maternally immune chickens.
TL;DR: Efficacy and excretion of an Ulster strain-derived Newcastle disease (ND) vaccine (Poulvac NDW Broiler) were examined in maternally immune chickens and respiratory signs of vaccinal reaction were absent after spray-application and were very slight following Atomist administration.
References
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Journal ArticleDOI
Aerosol vaccination against Newcastle disease using the Ulster strain.
R.E. Gough,W.H. Allan +1 more
TL;DR: It is suggested that primary vaccination of fully susceptible chickens with the Ulster strain will induce a high degree of immunity with less reaction in the respiratory tract than is found to occur with currently used vaccines.
Journal ArticleDOI
Laboratory tests for comparing live lentogenic newcastle disease vaccines.
L.J. Borland,W.H. Allan +1 more
TL;DR: There were differences between vaccines in immunising capacity, potency levels and stress effects, however, the AG68L vaccines were found to be more immunogenic than either the B1 or LaSota vaccines.
Journal ArticleDOI
Evidence of genetic heterogeneity of some lentogenic Newcastle disease virus strains.
Spalatin J,Hanson Rp +1 more
TL;DR: Two distinguishable subpopulations were recovered from chickens infected with lentogenic strains of Newcastle disease virus originally ioslated from chickens in Australia and Ireland, with differences in thermostability of the hemagglutinatin and mean survival time of infected chicken embryos, as well as in elution pattern.
Journal ArticleDOI
Antibody Response to Strain Combinations of Newcastle Disease Virus as Measured by Hemagglutination-Inhibition
K A Majiyagbe,S B Hitchner +1 more
TL;DR: It is suggested that the Ulster strain as primary vaccine followed by booster does of B-1 or LaSota will induce a higher antibody response (i.e., immunity) in susceptible chicken populations with less risk of a post-vaccination reaction.
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