摘要:
The present invention relates to pseudorabies virus mutants containing deletion and/or insertion mutations in a major viral glycoprotein gene, such that no antigenic polypeptides encoded by the viral gene are produced. As a re- sutt. animals vaccinated with such do not develop antibodies to the viral glycoprotein and can be distinguished from animals infected with pseudorabies virus field strains and known pseudorabies virus vaccine strains. The present invention also relates to vaccines for pseudorabies disease containing the same, methods for production of the same and methods for use of the same.
摘要:
Infectious bovine rhinotracheitis virus (bovine herpesvirus type 1) mutants containing deletion and/or insertion mutations in a major viral glycoprotein gene, such that no antigenic polypeptides encoded by the viral gene are produced, vaccines for infectious bovine rhinotracheitis containing the same, methods for the production of the same and methods for use of the same. Animals vaccinated with these mutants do not develop antibodies to the viral glycoprotein and can be distinguished serologically from animals infected with infectious bovine rhinotracheitis virus field strains.
摘要:
Bovine herpesvirus type 1 (infectious bovine rhinotracheitis virus) mutants which fail to produce any functional thymidine kinase as a result of a deletion in the thymidine kinase gene. The deletion in the thymidine kinase gene attenuates the viruses so that they can be used as an active agent in a modified live-virus vaccine against infectious bovine rhinotracheitis. This invention also relates to methods for the production and use of the same.
摘要:
Temperature-resistant pseudorabies viruses which fail to produce any functional TK as a result of mutagen-induced mutation and temperature-resistant pseudorabies viruses which fail to produce any functional TK as a result of a deletion in the tk gene, vaccines containing same, methods for production of same and methods for use of same.
摘要:
The present invention relates to a herpesvirus-based viral vector which expresses a foot and mouth disease epitope on the surface of virus-infected cells and on the surface of the virus particles. The viral vector of the present invention is useful, inter alia , as either a live or killed viral vaccine against foot and mouth disease.
摘要:
The present invention relates to a herpesvirus-based viral vector which expresses a foot and mouth disease epitope on the surface of virus-infected cells and on the surface of the virus particles. The viral vector of the present invention is useful, inter alia , as either a live or killed viral vaccine against foot and mouth disease.
摘要:
Described are thymidine kinase negative temperature resistant mutants of bovine herpesvirus effective in inducing resistance to infectious bovine rhinotracheitis, methods for their production, methods for maintaining them in viable form, and methods for administering them to animals in immunologically effective doses to induce reistance to infectious bovine rhinotracheitis.