269 results about "Protective immunity" patented technology

Compounds and methods for diagnosing tuberculosis or for inducing protective immunity against tuberculosis are disclosed. The compounds provided include polypeptides that contain at least one immunogenic portion of one or more Mycobacterium proteins and DNA molecules encoding such polypeptides. Diagnostic kits containing such polypeptides or DNA sequences and a suitable detection reagent may be used for the detection of Mycobacterium infection in patients and biological samples. Antibodies directed against such polypeptides are also provided. In addition, such compounds may be formulated into vaccines and/or pharmaceutical compositions for immunization against Mycobacterium infection.

The present invention relates generally to methods of treating or preventing RSV infections, and more specifically, to compositions, and the use thereof, comprising one or more RSV G protein immunogen or fragment thereof capable of eliciting protective immunity without eliciting an immunopathological response or eliciting a reduced immunopathological response.

Compounds and methods for inducing protective immunity against cancer are disclosed. The compounds provided include polypeptides that contain at least one immunogenic portion of one or more SPAS-1 proteins and DNA molecules encoding such polypeptides. Such compounds may be formulated into vaccines and pharmaceutical compositions for immunization against cancer, or can be used for the diagnosis of cancer and the monitoring of cancer progression

The invention is based in part on the finding that suppressing regulatory T cell function is needed in order to convert passive immunity into active antigen-specific immunity. Generally, the methods of the invention comprise at least the combination of: (1) increasing the amount of immune complexes in the subject, wherein the immune complex comprises a target antigen and a immunoglobulin molecule comprising (i) a variable region specific to the target antigen and (ii) a Fc receptor binding region; and (2) inhibiting regulatory T cell function or decreasing/depleting the regulatory T cell population in the subject.

The subject invention provides novel soluble PD-1 (sPD-1) proteins, nucleic acids, and fusion constructs thereof, for enhancing humoral and cell-mediated immunity of a subject. Also provided are therapeutic compositions comprising the sPD-1 proteins, nucleic acids, and fusion constructs of the subject invention. In a preferred embodiment, the therapeutic composition is formulated as a vaccine composition. Advantageously, the sPD-1 proteins, nucleic acids, and therapeutic compositions provide protective immunity against pathogenic infection including HIV infection. In additon, the subject invention can be used in the prevention and/or treatment of tumor or cancer.

The present invention relates to vaccine compositions comprising Norovirus antigens and adjuvants, in particular, mixtures of monovalent VLPs and mixtures of multivalent VLPs, and to methods of conferring protective immunity to Norovirus infections in a human subject.

Described in this application are attenuated strains of avian influenza virus containing temperature sensitive mutations in addition to a genetic tag in the PB1 gene. The attenuated viruses are useful as avian and mammalian vaccine for protective immunity against homologous and heterologous lethal challenges with influenza virus. A genetically modified avian influenza virus backbone is described which can be used as a master donor strain for the generation of live attenuated vaccines for epidemic and pandemic influenza.

Compositions comprise at least a portion of an antigen and at least a portion of a flagellin that lacks a hinge region. Compositions, fusion proteins and polypeptides comprise at least a portion of at least one pathogen-associated molecular pattern and at least a portion of at least one viral protein. The viral protein of the compositions, fusion proteins and polypeptides of the invention are flaviviral proteins, including a West Nile flaviviral protein, a Dengue flaviviral protein, a Langat flaviviral protein, a Kunjin flaviviral protein, a Murray Valley encephalitis flaviviral protein, a Japanese encephalitis flaviviral protein, a Tick-borne encephalitis flaviviral protein, a Yellow fever flaviviral protein and a hepatitis C flaviviral protein. The compositions, fusion proteins and polypeptides are used to stimulate an immune response and protective immunity in a subject.

A composition comprising an isolated fowl adenovirus (FAdV), wherein the FAdV is a strain selected from FAdV-2, FAdV-7, FAdv-8a, FAdV-8b, FAdV-8a/8b or FAdV-11 serotype strains; and a suitable carrier and methods for inducing protective immunity in a subject and/or its progeny.

The present invention relates to a vaccine for coccidiosis in chickens prepared from four attenuated Eimeria species: E. acervulina, E. maxima, E. mitis and E. tenella. The vaccine was similar to or superior to other anticoccidial drugs in stimulating protective immunity against coccidiosis.

The present invention relates to vaccine compositions comprising Norovirus antigens and adjuvants, in particular, mixtures of monovalent VLPs and mixtures of multivalent VLPs, and to methods of conferring protective immunity to Norovirus infections in a human subject.

This disclosure concerns compositions and methods for the treatment and inhibition of infectious disease, particularly methicillin-resistant Staphylococcus. In certain embodiments, the disclosure concerns immunogenic peptides, for instance PSM peptides, which can be used to induce protective immunity against methicillin-resistant Staphylococcus. Also disclosed are methods of detecting methicillin-resistant staphylococcus in a sample, and methods of diagnosing methicillin-resistant staphylococcus in a subject.

The present invention provides methods and compositions for the stimulation of immune responses. Specifically, the present invention provides immunogenic compositions and methods of using the same to induce immune responses (e.g., immunity (e.g., protective immunity)) against Hepatitis B virus (HBV)). Compositions and methods of the present invention find use in, among other things, clinical (e.g. therapeutic and preventative medicine (e.g., vaccination)) and research applications.

Live, attenuated recombinant rabies virus vaccines are generated using reverse genetics to combine the antigenic determinants that render the rabies virus non-pathogenic with the determinants that are responsible for the elicitation of an effective anti-rabies immune response. These vaccines do not affect the antigenic, and therefore the immunogenic, properties of the virus. The present invention further relates to recombinant rabies virus vaccines that express a pro-apoptotic protein, such as cytochrome c, to increase the capacity to induce apoptosis, thereby enhancing the protective immunity against rabies. This new generation of live rabies virus vaccines represents a safe and effective approach to the eradication of rabies in wildlife, and subsequently humans and livestock.

The present disclosure provides vaccine compositions comprising a PRRSV vaccine and a second porcine vaccine, which are substantially free from immuno-inhibition against each other. The second porcine virus vaccine can be CSFV and/or PRV. The preparation methods for the vaccines and the formulations are also provided. The vaccine compositions provided herein confer protective immunity to pigs against porcine reproductive and respiratory syndrome, classical swine fever, and/or pseudorabies.