Recombinant viral-based malaria vaccines

Chemistry: molecular biology and microbiology – Vector – per se

Reexamination Certificate

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C536S023700, C536S025600, C435S258200, C424S278100, C424S093200, C424S093100

Reexamination Certificate

active

07387894

ABSTRACT:
The present invention relates to novel vaccines against malaria infections, based on recombinant viral vectors, such as alpha viruses, adenoviruses or vaccinia viruses. The recombinant viral-based vaccines can be used to immunize against differentPlasmodiuminfections, such as infections byP. falciparumorP. yoelii. Novel codon-optimized circumsporozoite genes are disclosed. Preferably, replication-defective adenoviruses are used, derived from serotypes that encounter low titers of neutralizing antibodies. The invention, therefore, also relates to the use of different adenoviral serotypes that are administered to elicit a strong immune response, either in single vaccination set-ups or in prime-boost set-ups in which compositions based on different serotypes can be applied.

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