It is an object of the present invention to provide a transmission-blocking vaccine using an immunogenic protein which is specifically expressed in the oocyst stage of malaria parasites or a peptide fragment thereof, and an oral transmission-blocking vaccine capable of immunizing various animals involved in the malaria infectious cycle with such a vaccine. The present invention relates to a malaria transmission-blocking vaccine for oral administration containing an immunogenic protein derived from malaria parasite which is specifically expressed in the oocyst stage of malaria parasites or a peptide fragment thereof, and a method of blocking the transmission of malaria using the same.

It is an object of the present invention to provide a transmission-blocking vaccine using an immunogenic protein which is specifically expressed in the oocyst stage of malaria parasites or a peptide fragment thereof, and an oral transmission-blocking vaccine capable of immunizing various animals involved in the malaria infectious cycle with such a vaccine. The present invention relates to a malaria transmission-blocking vaccine for oral administration containing an immunogenic protein derived from malaria parasite which is specifically expressed in the oocyst stage of malaria parasites or a peptide fragment thereof, and a method of blocking the transmission of malaria using the same.

The present invention relates to the field of tuberculosis vaccines, and specifically relates to a tuberculosis vaccine, a preparation method thereof, and a use thereof. To address the problem of existing vaccines being unsuitable for patients having weak immunity, the present invention provides a preparation method for a tuberculosis vaccine: first obtaining Mycobacterium single cell bacteria, and using low dosage radiation to irradiate periodically the Mycobacterium single cell bacteria, so as to obtain the tuberculosis vaccine. The present invention completely retains all of the antigen characteristics of the bacteria, and can more rapidly stimulate stronger specific immune responses, thereby achieving effective and long-lasting immunity. The vaccine prepared using the present invention has low toxicity, is rapid-acting and safer, and can be used for the prevention and treatment of tuberculosis for people having immunodeficiency.

The present invention provides polypeptides useful as antigens expressed at the pre-erythrocytic stage of the malaria parasite. The antigens can be utilized to induce an immune response and sterile protection against malaria in a mammal by administering the antigens in vaccine formulations or expressing the antigens in DNA or other recombinant protein expression systems delivered as a vaccine formulation.

The present invention provides polypeptides useful as antigens expressed at the pre-erythrocytic stage of the malaria parasite. The antigens can be utilized to induce an immune response and sterile protection against malaria in a mammal by administering the antigens in vaccine formulations or expressing the antigens in DNA or other recombinant protein expression systems delivered as a vaccine formulation.

The present invention provides novel nanoparticle presented vaccine compositions that are stabilized with a locking domain. Various immunogens can be employed in the preparation of the vaccine compositions, including viral immunogens such as HIV-1 and Ebola viral immunogens, and non-viral immunogens such as immunogens derived from bacteria, parasites and mammalian species. The invention also provides methods of using such vaccine compositions in various therapeutic applications, e.g., for preventing or treating viral infections.

The invention provides compositions and methods for preventing and treating infection by Plasmodium sporozoites.

The invention provides compositions and methods for preventing and treating infection by Plasmodium sporozoites.

The invention provides a method of identifying an antigen from a pathogen or a disease antigen comprising the use of an adenoviral vector array comprising two or more different adenoviral vectors, wherein each adenoviral vector comprises a nucleic acid sequence encoding a different antigen of a pathogen. The adenoviral vectors are administered to antigen presenting cells (APCs) in vitro or to an animal in vivo. The immunogenicity of the antigen is measured by screening for an immune response from effector T lymphocytes in vitro and by screening for the absence of pathogen-induced disease onset in vivo.

The invention provides a method of identifying an antigen from a pathogen or a disease antigen comprising the use of an adenoviral vector array comprising two or more different adenoviral vectors, wherein each adenoviral vector comprises a nucleic acid sequence encoding a different antigen of a pathogen. The adenoviral vectors are administered to antigen presenting cells (APCs) in vitro or to an animal in vivo. The immunogenicity of the antigen is measured by screening for an immune response from effector T lymphocytes in vitro and by screening for the absence of pathogen-induced disease onset in vivo.