| Literature DB >> 17360080 |
Ricardo Carrion1, Jean L Patterson, Curtis Johnson, Monica Gonzales, Carmen R Moreira, Anysha Ticer, Kathleen Brasky, Gene B Hubbard, Dmitry Moshkoff, Juan Zapata, Maria S Salvato, Igor S Lukashevich.
Abstract
Lassa virus (LASV) is responsible for the deaths of thousands of people in West Africa annually. Genetic diversity among LASV strains is the highest among the Arenaviridae and represents a great challenge for vaccine development. Guinea pigs vaccinated with a ML29 reassortant vaccine experienced sterilizing immunity and complete protection when challenged on day 30 either with homologous virus or with the distantly related Nigerian isolate. Simultaneous vaccination-challenge or challenge on day 2 after vaccination also protected 60-100% of the animals against both strains, but without sterilizing immunity. These results indicate that simultaneous replication of ML29 and LASV attenuates the virulence of LASV infection.Entities:
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Year: 2007 PMID: 17360080 PMCID: PMC1892204 DOI: 10.1016/j.vaccine.2007.02.038
Source DB: PubMed Journal: Vaccine ISSN: 0264-410X Impact factor: 3.641