摘要:
Provided in the present invention is a vaccine composition comprising an immune amount of attenuated live vaccine, inactivated vaccine, subunit vaccine, synthetic vaccine, or genetically engineered vaccine of the porcine pseudorabies virus strain. The vaccine composition can effectively induce antibody generation, and prevent infections of virulent strains of the porcine pseudorabies virus, and provides effective protection for pigs.
摘要:
A thermostable varicella zoster virus (tVZV) is useful for the preparation of a vaccine against chickenpox. The tVZV was selected from a population of virus which survived stringent heat inactivation conditions. The surviving virus is used to provide seed virus to produce a new vaccine with enhanced stability.
摘要:
The invention provides an inactivated varicella zoster virus (VZV), and compositions and vaccines comprising said inactivated VZV, wherein the infectivity of the VZV is undetectable and wherein the inactivated VZV induces an immune response against VZV when administered to a patient. In embodiments of the compositions described herein, the VZV is inactivated with gamma radiation. The invention also provides a method of preparing an inactivated VZV vaccine, the method comprising gamma irradiating a sample comprising a VZV using from about 5 kGy to about 50 kGy of gamma radiation. Also provided by the invention herein is a method of treatment of or immunization against HZ or other disease associated with the reactivation of VZV, the method comprising administering to a subject a vaccine or pharmaceutical composition comprising a therapeutically effective amount of an inactivated VZV and a pharmaceutically acceptable carrier, wherein the VZV is inactivated by gamma irradiation.
摘要:
An attenuated feline recombinant herpesvirus 1 (FHV-1), which is prepared by identifying gene regions in the genome wherein inserted foreign genes can be expressed without affecting the replication of FHV-1 and has at least two types of foreign nucleic acid sequences inserted thereinto, usable as a vector virus or a vaccine. In this attenuated recombinant FHV-1, at least two types of foreign genes are inserted in such a manner as allowing the expression into two different gene regions exerting no lethal effect on the proliferation of the virus in the feline herpesvirus 1 genome.
摘要:
This invention relates to mutant Equine herpesvirus type-1 (EHV-1) isolates, and in particular, EHV-1 isolates carrying mutations in the immediate-early (IE) gene of the viral genome. A panel of EHV-1 mutant isolates have been described. Preffered EHV-1 isolates are those which are replication-competent and nonpathogenic. The mutant EHV-1 isolates of the present invention are useful in formulating vaccine compositions for preventing and treating EHV-1 infections in horses. The present invention further provides methods of determining the pathogenicity of an EHV-1 virus present in a horse subject which has been previously immunized with a non-pathogenic EHV-1 isolate of the present invention.
摘要:
A safe live recombinant virus as well as a vaccine is produced by the deletion of a portion of the native glycoprotein E(gE) coding region of bovine herpesvirus 1(BHV-1) followed by the insertion of a plasmid including a foreign functional β-gal at the gE locus. The deletion of gE gene stably attenuates the virus and serves as an immunological marker differentiating vaccinated animals from infected animals. Moreover, production of β-gal allows easy assessment of gEΔ3.1IBRβ virus replication in vaccinated animals and serves as a phenotypic marker which distinguishes it from wild type virus replication in infected animals.
摘要:
This invention relates to Equine Herpes Viruses (EHV) wherein the protein gM is essentially absent or modified and non-functional with respect to its immunomodulatory capacity. Further aspects of the invention relate to nucleic acids coding said viruses, pharmaceutical compositions comprising these viruses or nucleic acids and uses thereof. The invention also relates to methods for improving the immune response induced by an EHV vaccine against wild type EHV infections, methods for the prophylaxis and treatment of EHV infections and methods for distinguishing wild type EHV infected animals from animals treated with EHV's according to the invention.
摘要:
A recombinant varicella-zoster virus; a process for producing the same; a pharmacological composition containing recombinant varicella-zoster virus; a vector containing a genomic gene of varicella-zoster virus and BAC vector sequence; cells containing the above vector; a fragment capable of homologous recombination with a genome of varicella-zoster virus; and a nucleic acid cassette containing the BAC vector sequence. For these, there is provided a process for producing recombinant varicella-zoster virus, comprising use of the BAC vector sequence.