Vaccines for the malaria circumsporozoite protein
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United States of America Patent
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May 12, 1992
Grant Date -
N/A
app pub date -
Oct 2, 1987
filing date -
Oct 2, 1987
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Expired
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Abstract
The present invention is directed to attenuated strains of enteroinvasive bacteria that express a peptide or protein related to an epitope of the malaria parasites of the genus Plasmodium. The bacterial strains of the invention which can multiply in a host without causing significant disease or disorder, and which express a Plasmodium-related peptide that induces a protective immune response against malaria, can be used in live vaccine formulations for malaria. In specific embodiments, a Plasmodium-related peptide can be expressed as a fusion protein, for example, with a bacterial enterotoxin. The invention also relates to methods for expression of malaria antigens or fragments thereof within attenuated enteroinvasive bacteria. In particular embodiments, the invention is directed to the expression by attenuated Salmonella spp. of epitopes of Plasmodium circumsporozoite proteins.
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