Vaccine composition comprising a mixture of a recombinant protein containing a C-terminal p19 fragment of the MSP-1 protein from plasmodium falciparum and another recombinant p19 protein from a plasmodium homologous to P. falciparum

摘要

Recombinant protein (I) includes: (a) a 19 kD C-terminal fragment (p19) of merozoite surface protein-1 (MSP-1) of a Plasmodium (other than P. vivax) infectious for mammals, particularly humans; p19 is normally anchored to the surface of the parasite at the end of penetration into an erythrocyte during an infection cycle; (b) a part of p19 that can induce an immune response able to inhibit parasitaemia in vivo; or (c) a peptide that can induce a cellular and/or humoral response equivalent to that produced by (a) or (b). (I) may include: (i) conformational epitopes that are unstable in a reducing environment; and (ii) most epitopes recognised by human antisera raised against the relevant Plasmodium species.