作者: Yuan-Pin Huang , Tsuey-Li Lin , Ting-Han Lin , Ho-Sheng Wu
DOI: 10.1371/JOURNAL.PONE.0080942
关键词: Neutralization 、 Antigenic Diversity 、 Genetic variation 、 Virology 、 Outbreak 、 Phylogenetic tree 、 Biology 、 Genetics 、 Genetic diversity 、 Phylogenetics 、 Enterovirus 71 、 General Biochemistry, Genetics and Molecular Biology 、 General Agricultural and Biological Sciences 、 General Medicine
摘要: Different subgenogroups of enterovirus 71 (EV-71) have caused numerous outbreaks hand, foot, and mouth disease worldwide, especially in the Asia-Pacific region. During development a vaccine against EV-71, genetic antigenic diversities EV-71 isolates from Taiwan were analyzed by phylogenetic analyses neutralization tests. The results showed that dominant genogroups had changed twice, B to C B, between 2009 2012. subgenogroup B5 (B5b cluster) was 2008-2009 but replaced C4 2010-2011. From end 2011 2012, re-emerging (B5c identified as outbreaks, C2 detected sporadic cases. Interestingly, amino acid substitution at position 145 VP1 gene observed some strains isolated patients with acute flaccid paralysis. Furthermore, thirty-five their corresponding serum samples used analyze cross-protections among different (C4a, C5, B4, B5b, B5c, C2-like) EV-71. Evident diversity existed only for C2-like subgenogroup, which not effectively neutralized other samples. In contrast, anti-C2-like sample broad cross-reactivity all subgenogroups. Therefore, these may provide valuable information selection candidates evolution