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Vaccine Detail
rFP9-Malaria-CSP |
Vaccine Information |
- Vaccine Name: rFP9-Malaria-CSP
- Target Pathogen: malaria
- Type: Recombinant vector vaccine
- Status: Licensed
- Host Species for Licensed Use: Baboon
- Vector:
- Preparation: Recombinant viral vaccines fowlpox strain FP9 and modified virus Ankara (MVA), a protein vaccine (CV-1866), or a combination of the two; all vaccines express parts of the same preerythrocytic malaria antigen, the Plasmodium berghei circumsporozoite protein (CSP (Hutchings et al., 2007).
- Immunization Route: Intramuscular injection (i.m.)
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Host Response |
Mouse Response
- Vaccination Protocol: Mice were immunized with the recombinant viral vaccines fowlpox strain FP9 and modified virus Ankara (MVA), a protein vaccine (CV-1866), or a combination of the two; all vaccines express parts of the same preerythrocytic malaria antigen, the Plasmodium berghei circumsporozoite protein (CSP) (Hutchings et al., 2007).
- Vaccine Immune Response Type: VO_0003057
- Challenge Protocol: Mice were then challenged with P. berghei sporozoites to determine the protective efficacies of different vaccine regimens (Hutchings et al., 2007).
- Efficacy: Two immunizations with the protein vaccine CV-1866, based on the hepatitis B core antigen particle, induced strong humoral immunity to the repeat region of CSP that was weakly protective against sporozoite challenge. Prime-boost with the viral vector vaccines, FP9 followed by MVA, induced strong T-cell immunity to the CD8+ epitope Pb9 and partially protected animals from challenge. Physically mixing CV-1866 with FP9 or MVA and then immunizing with the resultant combinations in a prime-boost regimen induced both cellular and humoral immunity and afforded substantially higher levels of protection (combination, 90%) than either vaccine alone (Hutchings et al., 2007).
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References |
Hutchings et al., 2007: Hutchings CL, Birkett AJ, Moore AC, Hill AV. Combination of protein and viral vaccines induces potent cellular and humoral immune responses and enhanced protection from murine malaria challenge. Infection and immunity. 2007; 75(12); 5819-5826. [PubMed: 17908809].
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