The present application relates to epitope-targeted SIV and HIV vaccines. The invention provides novel envelope glycoproteins which may be utilized as HIV-1 vaccine immunogens, antigens for crystallization, and for identification of broadly neutralizing antibodies. The invention encompasses preparation and purification of immunogenic compositions which are formulated into vaccines of the present invention.

A method for preventing an infectious disease in a subject in need thereof. In particular the method includes the administration of a combination, pharmaceutical combination, medicament or kit-of-parts including a first part including a CD8 vaccine specific for at least one infectious disease-related antigen, optionally a second part including an interferon alpha blocking agent, and a third part including a type III interferon and/or an agent stimulating the production of type III interferon.

The present disclosure relates generally to gene delivery using a chimeric, retroviral-RNA replicon vector particle for increased expression of transgenes in a host cell. In particular, the chimeric vectors described herein can be used in any of a variety of settings including gene therapy and vaccine settings.

Provided herein are recombinant nucleic acid sequences derived from the C-terminal domain of the HIV-1 gp41 protein, and more specifically compositions and methods for using these epitopes to develop vaccine protection against HIV. Also provided here are monoclonal antibodies that specifically bind to these recombinant nucleic acid sequences derived from the C-terminal domain of the HIV-1 gp41 protein.

Provided herein are methods for inducing an immune response against an antigen in a subject. In some embodiments, the methods comprise administering a therapeutically effective amount of a vaccine and an interleukin 10 (IL-10) inhibitor to the subject. In some embodiments, the vaccine is an IL-10-deficient vaccine.

Disclosed herein are recombinant CMV vectors which may comprise a heterologous antigen that can repeatedly infect an organism while inducing a CD8+ T cell response to immunodominant epitopes of the heterologous antigen. The CMV vector may comprise a deleterious mutation in the US11 glycoprotein or a homolog thereof.

An enveloped viral particle producer or packaging cell, wherein the cell is genetically engineered to decrease expression of CD47 on the surface of the cell.

The present invention relates generally to immunization and immunotherapy for the treatment or prevention of HIV. In particular, the methods include in vivo and/or ex vivo enrichment of HIV-specific CD4+ T cells.

In the present invention, the Applicant provides a novel method for preventing or treating an infectious disease in a subject in need thereof. In particular said method comprise the administration of a combination, pharmaceutical combination, medicament or kit-of-parts comprising a first part comprising a CD8 vaccine specific for at least one infectious disease-related antigen, optionally a second part comprising an interferon alpha blocking agent, and a third part comprising a type III interferon and/or an agent stimulating the production of type III interferon.

The present invention is directed to recombinant lentiviral particles that array the SARS-CoV-2 spike (S) protein on their surface (“SARS-CoV-2 S Protein Lentiviral Particles”), and that optionally comprise an additional copy of a polynucleotide encoding the SARS-CoV-2 spike (S) protein in their viral genome, and to methods for the production of such lentiviral particles. The invention particularly pertains to such SARS-CoV-2 S Protein Lentiviral Particles that have been engineered to be incapable of mediating the integration of their lentiviral genome into the chromosomes of infected cells and/or to be incapable of mediating the reverse transcription of their lentiviral genome. The present invention is also directed to “SARS-CoV-2 S Protein Lentiviral Vaccine” pharmaceutical compositions that comprise such SARS-CoV-2 S Protein Lentiviral Particles. The present invention is additionally directed to the use of such SARS-CoV-2 S Protein Lentiviral Vaccine pharmaceutical compositions for providing immunity to COVID-19 infection to humans and other mammals, either directly or as an inactivated form.