Zika virus (ZIKV) infections have been linked with neurological complications and congenital Zika syndrome. Given the high level of homology between ZIKV and the related flavivirus dengue virus (DENV), we investigated the level of cross-reactivity with ZIKV using a panel of DENV human mAbs. A majority of the mAbs showed binding to ZIKV virions, with several exhibiting neutralizing capacities against ZIKV in vitro. Three of the best ZIKV-neutralizing mAbs were found to recognize diverse epitopes on the envelope (E) glycoprotein: the highly conserved fusion-loop peptide, a conformation-specific epitope on the E monomer, and a quaternary epitope on the virion surface. The most potent ZIKV-neutralizing mAb (SIgN-3C) was assessed in 2 type I interferon receptor–deficient (
Yiu-Wing Kam, Cheryl Yi-Pin Lee, Teck-Hui Teo, Shanshan W. Howland, Siti Naqiah Amrun, Fok-Moon Lum, Peter See, Nicholas Qing-Rong Kng, Roland G. Huber, Mei-Hui Xu, Heng-Liang Tan, Andre Choo, Sebastian Maurer-Stroh, Florent Ginhoux, Katja Fink, Cheng-I Wang, Lisa F.P. Ng, Laurent Rénia
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