Critical neutralizing fragment of Zika virus EDIII elicits cross-neutralization and protection against divergent Zika viruses.

ABSTRACT: Zika virus (ZIKV) infection remains a serious health threat due to its close association with congenital Zika syndrome (CZS), which includes microcephaly and other severe birth defects. As no vaccines are available for human use, continuous effort is needed to develop effective and safe vaccines to prevent ZIKV infection. In this study, we constructed three recombinant proteins comprising, respectively, residues 296-406 (E296-406), 298-409 (E298-409), and 301-404 (E301-404) of ZIKV envelope (E) protein domain III (EDIII) fused with a C-terminal Fc of human IgG. Our results demonstrated that E298-409 induced the highest titer of neutralizing antibodies against infection with nine ZIKV strains isolated from different hosts, countries, and time periods, and it maintained long-term anti-ZIKV i

SUBMITTER: Tai W 

PROVIDER: S-EPMC5837162 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature