Results 101 to 110 of about 397 (126)
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Science in China Series C: Life Sciences, 2007
The viral protein 22 (VP22) in the tegument of Marek's disease virus serotype 1 (MDV-1) plays an important role in cell-to-cell spread and viral propagation. Antiserum against the carboxyl terminus of VP22 was prepared by immunizing mice with recombinant VP22 expressed in E. coli, and used to investigate its expression in chicken embryo fibroblast (CEF)
Hongjun Chen, Aijian Qin
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The viral protein 22 (VP22) in the tegument of Marek's disease virus serotype 1 (MDV-1) plays an important role in cell-to-cell spread and viral propagation. Antiserum against the carboxyl terminus of VP22 was prepared by immunizing mice with recombinant VP22 expressed in E. coli, and used to investigate its expression in chicken embryo fibroblast (CEF)
Hongjun Chen, Aijian Qin
exaly +3 more sources
Molecular Identification of the Marek's Disease Virus Vaccine Strain CVI988 in Vaccinated Chickens
Zoonoses and Public Health, 2002The study describes three polymerase chain reaction (PCR) systems for the CVI988 vaccine virus: the meq gene, the MDV BamHI‐D/H 132 bp tandem repeat fragment and the MDV‐gB gene. Whereas the PCR product of virulent MDV strains and of the CVI988 virus strain with the meq and the 132 bp primer sets differed for the two templates, the MDV‐gB PCR products ...
Y Weisman
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Comparative 50% protective dose assays (PD50) of Marke's disease virus strain CVI988
Journal of Biological Standardization, 1981Six 50% protective dose (PD50) assays of cell-associated Marek's disease (MD) virus strain CVI988 were performed in five laboratories. Three strains of chickens and different batches of MDV CVI988 were used. The PD50 of cell-associated MDV CVI988 was found to be about 40 f.f.u.
G F De Boer
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Avian Diseases, 2014
The serotype 1 Marek's disease virus (MDV) is the causative agent for Marek's disease (MD), a lymphoproliferative disease of chickens of great concern to the poultry industry. CVI988 (Rispens vaccine), an attenuated serotype 1 MDV, is currently the most efficacious commercially available vaccine for preventing MD. However, it is difficult to detect and
Isabel M Gimeno +2 more
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The serotype 1 Marek's disease virus (MDV) is the causative agent for Marek's disease (MD), a lymphoproliferative disease of chickens of great concern to the poultry industry. CVI988 (Rispens vaccine), an attenuated serotype 1 MDV, is currently the most efficacious commercially available vaccine for preventing MD. However, it is difficult to detect and
Isabel M Gimeno +2 more
exaly +3 more sources
Avian Diseases, 2015
Marek's disease (MD) strain CVI988 is the most-protective commercially available vaccine against very virulent plus (vv+) Marek's disease virus (MDV). However, its use in meat-type chickens has been controversial. While several countries have been using CVI988 for more than 40 yr, others do not authorize its use or it is restricted mainly to layers ...
Isabel M Gimeno +2 more
exaly +3 more sources
Marek's disease (MD) strain CVI988 is the most-protective commercially available vaccine against very virulent plus (vv+) Marek's disease virus (MDV). However, its use in meat-type chickens has been controversial. While several countries have been using CVI988 for more than 40 yr, others do not authorize its use or it is restricted mainly to layers ...
Isabel M Gimeno +2 more
exaly +3 more sources
Avian Pathology, 2000
This study was performed to examine the effect of Marek's disease virus (MDV) serotype 1 vaccine (CVI988/Rispens) on the pathogenicity of Cryptosporidium baileyi , and to determine whether C. baileyi infection could prevent the development of vaccinal Marek's disease (MD) immunity in specific pathogen free (SPF) chickens. Sixty-eight SPF homozygous B13
G Dambrine
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This study was performed to examine the effect of Marek's disease virus (MDV) serotype 1 vaccine (CVI988/Rispens) on the pathogenicity of Cryptosporidium baileyi , and to determine whether C. baileyi infection could prevent the development of vaccinal Marek's disease (MD) immunity in specific pathogen free (SPF) chickens. Sixty-eight SPF homozygous B13
G Dambrine
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Veterinary Microbiology, 2016
Vaccination with "imperfect" vaccines that prevent disease but not infection is strongly implicated in the observed increased virulence of Marek's disease virus (MDV) over the past six decades. The current "gold standard" vaccine, Rispens CVI988 (Rispens), has maintained efficacy despite use for five decades, raising the question of whether it too ...
Sithara Ralapanawe +2 more
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Vaccination with "imperfect" vaccines that prevent disease but not infection is strongly implicated in the observed increased virulence of Marek's disease virus (MDV) over the past six decades. The current "gold standard" vaccine, Rispens CVI988 (Rispens), has maintained efficacy despite use for five decades, raising the question of whether it too ...
Sithara Ralapanawe +2 more
exaly +3 more sources
Virus Genes, 2005
Marek's disease virus (MDV), a highly cell-associated oncogenic chicken herpesvirus, causes Marek's disease in domestic chickens. A unique phosphoprotein of MDV, pp38, has previously been associated with the maintenance of transformation in MDV-induced tumor cell lines.
Lucy F Lee +2 more
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Marek's disease virus (MDV), a highly cell-associated oncogenic chicken herpesvirus, causes Marek's disease in domestic chickens. A unique phosphoprotein of MDV, pp38, has previously been associated with the maintenance of transformation in MDV-induced tumor cell lines.
Lucy F Lee +2 more
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Journal of Virological Methods, 2015
Marek's disease (MD) is a tumoral disease of chickens that can be controlled by vaccines based on non-pathogenic strains of turkey herpesvirus (HVT), SB-1 strain belonging to serotype 2, or the attenuated CVI988/Rispens strain belonging to serotype 1 of Marek's disease virus (MDV).
Grzegorz Wozniakowski
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Marek's disease (MD) is a tumoral disease of chickens that can be controlled by vaccines based on non-pathogenic strains of turkey herpesvirus (HVT), SB-1 strain belonging to serotype 2, or the attenuated CVI988/Rispens strain belonging to serotype 1 of Marek's disease virus (MDV).
Grzegorz Wozniakowski
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Avian Diseases, 1995
Studies were focused on two attenuated serotype 1 Marek's disease (MD) vaccine viruses, CVI988/Rispens (passage 42) and R2/23 (passage 105). Both serotype 1 vaccine viruses provided much higher levels of protection than the prototype MD vaccine, turkey herpesvirus (HVT); the best protection was generally provided by CVI988/Rispens when compared with ...
L F Lee, A M Fadly
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Studies were focused on two attenuated serotype 1 Marek's disease (MD) vaccine viruses, CVI988/Rispens (passage 42) and R2/23 (passage 105). Both serotype 1 vaccine viruses provided much higher levels of protection than the prototype MD vaccine, turkey herpesvirus (HVT); the best protection was generally provided by CVI988/Rispens when compared with ...
L F Lee, A M Fadly
exaly +3 more sources