Abstract:
The present invention provides an effective vaccine for Marek's disease, which may be prepared using a recombinant Marek's Disease Virus (MDV), strain CVI988, having been transformed with a foreign DNA construct that includes a long terminal repeat sequence of a reticuloendotheliosis virus. This safe viral agent elicits a highly protective immune response in a chicken against virulent MDV challenge without causing a significant degree of pathogenicity. Suitable formulations of the vaccine for use in chickens include an effective immunization dosage of this novel viral agent, along with a pharmaceutically acceptable carrier or diluent.
Abstract:
The present invention provides a recombinant turkey herpesvirus modified by the presence of the cDNA encoding the hemagglutinin protein of avian influenza virus under a promoter. A poultry vaccine comprising the recombinant turkey herpesvirus described in the present invention can induce serological responses that may be easily detected by the hemagglutination inhibition assay but not by commercially available diagnostic ELISA kits; thus enabling easy differentiation between vaccination and field infection.
Abstract:
The present invention generally relates to a strain of Lactobacillus probiotic bacteria and a poultry vaccine for use in the in ovo vaccination of poultry, wherein said strain and said vaccine are administered to an embryonated poultry egg. Compositions suitable for use in an in ovo vaccination protocol for poultry comprising a strain of Lactobacillus probiotic bacteria and a vaccine diluent which is suitable for the poultry vaccine to be used in said vaccination protocol are also provided, as are suitable kits for use in the invention.
Abstract:
The present disclosure provides a recombinant viral vector comprising at least one transgene inserted into a Marek's disease viral genome for treatment of diseases in poultry. Also provided are immunogenic compositions comprising such recombinant viral vectors and methods for preventing or inhibiting Marek's disease in combination with at least a second disease in poultry.
Abstract:
The present invention relates to compositions and methods for preparing cells from avian embryos. The invention also relates to cultures of such cells and the uses thereof, particularly for producing viruses such as MDV. The invention also relates to methods for the preparation of vaccines using such cells or viruses.
Abstract:
The present invention discloses novel recombinant multivalent non-pathogenic Marek's Disease virus constructs that encode and express both Infectious Laryngotracheitis Virus and Newcastle Disease virus protein antigens, and methods of their use in poultry vaccines.
Abstract:
Recombinant multivalent non-pathogenic Marek's Disease virus constructs that encode and express both Infectious Laryngotracheitis Virus and Newcastle Disease virus protein antigens, and methods of their use in poultry vaccines.
Abstract:
Promoter genes that are derived from Marek's disease virus (MDV). These promoter genes can express two foreign genes when inserted in a recombinant turkey herpesvirus (HVT). A recombinant HVT having said novel promoter gene between two foreign genes. The poultry vaccine consisting of the recombinant turkey herpesvirus described in the present invention.
Abstract:
An antigen composition for stimulating an immune response in an inoculated avian species to at least one intestinal pathogenic organism includes seven field strains of E. coli, Pseudomona aeruginosa, Aerobacter aerogenes, Salmonella enteritidis, Salmonella typhimurium, Salmonella agona, and Salmonella Kentucky. The antigen, composition can be used alone or in combination with a Marek's Disease vaccine to reduce shedding of E. coli and/or Salmonella bacteria.
Abstract:
The present invention is directed to isolated Salmonella bacteriophage, and methods of using Salmonella bacteriophage, or polynucleotides and polypeptides derived therefrom, to control the growth or contamination of food products by Salmonella. The present invention also contemplates the use of Salmonella bacteriophage, and polynucleotides and polypeptides derived therefrom, for the treatment of host infections or environmental contamination by Salmonella.