scholarly journals Velogenic newcastle disease virus tissue tropism and pathogenesis of infection in chickens by application of in situ PCR, immunoperoxase staining and HE staining

2019 ◽  
Vol 129 ◽  
pp. 213-223 ◽  
Author(s):  
Elawad A. Hussein ◽  
M. Hair-Bejo ◽  
Abdul R. Omar ◽  
Siti S. Arshad ◽  
Homayoun Hani ◽  
...  
Keyword(s):  
Newcastle Disease Virus ◽  
Disease Virus ◽  
Newcastle Disease ◽  
Tissue Tropism ◽  
In Situ Pcr ◽  
Velogenic Newcastle Disease Virus

scholarly journals Characterization and comparison of the pathogenicity of viscerotropic velogenic Newcastle disease virus isolates in Korea

2012 ◽  
Vol 52 (4) ◽  
pp. 213-221
Author(s):  
Jae-Hong Kim ◽  
Haan-Woo Sung ◽  
Il-Hwan Kim ◽  
Eun-Kyoung Lee ◽  
Kang-Seuk Choi ◽  
...  
Keyword(s):  
Newcastle Disease Virus ◽  
Disease Virus ◽  
Newcastle Disease ◽  
Velogenic Newcastle Disease Virus ◽  
Virus Isolates

scholarly journals Evaluation of immunity and protection in chicken administered a developed vaccine against predominant Middle Eastern strains of genotypes VI and VII of velogenic Newcastle Disease Virus

2020 ◽  
Author(s):  
Soonham Sami Yaghmoor` ◽  
Taha Abdullah Kumosani ◽  
Elie Kamil Barbour ◽  
Othman Abubaker Baothman
Keyword(s):  
Newcastle Disease Virus ◽  
Disease Virus ◽  
Humoral Immunity ◽  
Newcastle Disease ◽  
Middle Eastern ◽  
Economic Losses ◽  
Bivalent Vaccine ◽  
Velogenic Newcastle Disease Virus ◽  
Ifn Γ ◽  
H Protein

Abstract Background The velogenic-Newcastle Disease Virus (v-NDV) causes an important disease in chicken, associated with serious economic losses to the global poultry industry. This research evaluated the immunity in broilers administered a developed bivalent vaccine, aiming at protection against predominant Middle Eastern strains of genotypes VI and VII of v-NDV. The completely randomized design implemented in this evaluation included eight treatments, differing in birds being administered or deprived of the developed vaccine, with a difference in type of challenge, either by v-NDV strain(s) of genotype VI, VII, or both. Vaccination was administered subcutaneously at 6 and 21 d of age, followed by an intra-pectoral challenge at the age of 28 d. Results The acquired humoral immunity by vaccinated and challenged birds to Hemagglutinin (H) protein was the highest at market age of 40 d, compared to challenged birds deprived of vaccination, and to vaccinates deprived of challenge (P<0.05). The same statistical difference pattern was obtained by the cell-mediated immunity (CMI), represented by birds’ level of serum IFN- γ . The type of challenge by either strain(s) of genotype VI, VII, or VI+VII did affect statistically the cross reactivity of acquired humoral immunity specific to H protein of homologous versus heterologous strains. The absence of humoral immunity and the low IFN- γ levels at 28 d of age in challenged birds deprived of vaccination lead to highest mortality, and lowest performance compared to vaccinates and challenged, vaccinates and deprived of challenge, and unvaccinated-unchallenged birds (P<0.05). Conclusions The developed bivalent vaccine was able to induce enough humoral and CMI responses, enabling protection of the broilers against production losses by each of the three types of v-NDV challenges. It is recommended to conduct future studies to evaluate such types of vaccines in chicken breeders and commercial layers, reared in various world’s zones with existing endemicity of v-NDV.

Cormorants as Potential Victims and Reservoirs of Velogenic Newcastle Disease Virus (Orthoavulavirus-1) in Central Asia

2019 ◽  
Vol 63 (4) ◽  
pp. 599
Author(s):  
Kobey Karamendin ◽  
Aidyn Kydyrmanov ◽  
Yermukhammet Kasymbekov ◽  
Klara Daulbayeva ◽  
Elizaveta Khan ◽  
...  
Keyword(s):  
Newcastle Disease Virus ◽  
Central Asia ◽  
Disease Virus ◽  
Newcastle Disease ◽  
Velogenic Newcastle Disease Virus

Comparative Study of the Pathology and Pathogenesis of a Local Velogenic Newcastle Disease Virus Infection in Ducks and Chickens

2013 ◽  
Vol 13 (1) ◽  
pp. 52-61 ◽  
Author(s):  
Chekwube Paul EZE ◽  
John Osita Arinze Okoye ◽  
Innocent Okonkwo Ogbonna ◽  
Wilfred Sunday Ezema ◽  
Didacus Chukwuemeka EZE ◽  
...  
Keyword(s):  
Virus Infection ◽  
Comparative Study ◽  
Newcastle Disease Virus ◽  
Disease Virus ◽  
Newcastle Disease ◽  
Velogenic Newcastle Disease Virus ◽  
Newcastle Disease Virus Infection

Characterization of complete genome sequence of genotype VI and VII velogenic Newcastle disease virus from Japan

Virus Genes ◽  
2014 ◽  
Vol 49 (1) ◽  
pp. 89-99 ◽  
Author(s):  
Dennis V. Umali ◽  
Hiroshi Ito ◽  
Kazutoshi Shirota ◽  
Hiromitsu Katoh ◽  
Toshihiro Ito
Keyword(s):  
Newcastle Disease Virus ◽  
Disease Virus ◽  
Genome Sequence ◽  
Newcastle Disease ◽  
Complete Genome Sequence ◽  
Complete Genome ◽  
Velogenic Newcastle Disease Virus

Resistance to Velogenic Newcastle Disease Virus in Leghorn Chickens by Use of Prophylactic Lymphokines

2002 ◽  
Vol 46 (3) ◽  
pp. 525-534 ◽  
Author(s):  
Julio C. Alfaro ◽  
Víctor M. Petrone ◽  
Tamas Fehervari ◽  
Gerardo Nava ◽  
Michael Kogut ◽  
...  
Keyword(s):  
Newcastle Disease Virus ◽  
Disease Virus ◽  
Newcastle Disease ◽  
Velogenic Newcastle Disease Virus
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