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ABSTRACT Heterologous prime-boost immunization with DNA and various recombinant poxviruses encoding malaria antigens is capable of inducing strong cell-mediated immune responses and partial protection in human sporozoite challenges. Here we report a series of trials assessing recombinant fowlpox virus and modified vaccinia virus Ankara encoding the Plasmodium falciparum circumsporozoite protein in various prime-boost combinations, doses, and application routes. For the first time, these vaccines were administered intramuscularly and at doses of up to 5 × 10 8 PFU. Vaccines containing this antigen proved safe and induced modest immune responses but showed no evidence of efficacy in a sporozoite challenge.

Original publication

DOI

10.1128/iai.74.5.2706-2716.2006

Type

Journal article

Journal

Infection and Immunity

Publisher

American Society for Microbiology

Publication Date

05/2006

Volume

74

Pages

2706 - 2716