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Transmission-blocking immunity to Plasmodium falciparum in malaria-immune individuals is associated with antibodies to the gamete surface protein Pfs230

  • J. HEALER (a1) (a2), D. McGUINNESS (a1), R. CARTER (a1) and E. RILEY (a1) (a3)

Abstract

Malaria-immune human sera were tested for their ability to affect the infectivity of Plasmodium falciparum gametocytes to Anopheles stephensi mosquitoes. Transmission-reducing effects of the sera were associated with the presence of antibodies to the gamete surface protein, Pfs230. Enhancement of transmission, manifest as elevated numbers of oocysts relative to controls, was observed for a number of sera, but was not found to be associated with antibodies against Pfs230. These results confirm that Pfs230 is a possible candidate for inclusion in a transmission-blocking malaria vaccine.

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Corresponding author

Corresponding author: Department of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK. Tel: +44 171 927 2706. Fax: +44 171 637 4314. E-mail: e.riley@lshtm.ac.uk

Keywords

Transmission-blocking immunity to Plasmodium falciparum in malaria-immune individuals is associated with antibodies to the gamete surface protein Pfs230

  • J. HEALER (a1) (a2), D. McGUINNESS (a1), R. CARTER (a1) and E. RILEY (a1) (a3)

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