Evaluation of European tick-borne encephalitis virus vaccine against recent Siberian and far-eastern subtype strains

被引:30
作者
Hayasaka, D [1 ]
Goto, A [1 ]
Yoshii, K [1 ]
Mizutani, T [1 ]
Kariwa, H [1 ]
Takashima, I [1 ]
机构
[1] Hokkaido Univ, Grad Sch Vet Med, Dept Environm Vet Sci, Publ Hlth Lab, Sapporo, Hokkaido 0600818, Japan
基金
日本学术振兴会;
关键词
Siberian and far-eastern Russia; TBE; vaccine;
D O I
10.1016/S0264-410X(01)00218-3
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
To evaluate the efficacy of the European TBE, vaccine in east-Siberian and far-eastern. regions of Russia, we examined the immune responses of the vaccine against recent TBE virus Siberian (Irkutsk) and far-eastern (Khabarovsk and Vladivostok) isolates. The sera of vaccinated humans showed efficient neutralizing antibody titers (greater than or equal to 20) against Siberian and far-eastern strains. To evaluate the efficacy of the vaccine in vivo, mice were vaccinated and challenged with lethal doses of the viruses. All vaccinated mice survived each virus challenge. These-results suggest that the European vaccine can prevent the TBE virus infection in east-Siberian and far-eastern regions of Russia. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:4774 / 4779
页数:6
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