text_1: Nonhuman primates are incapable of producing neutralizing antibodies in reponse to the Eilat virus (EILV) produced in mosquitos.
text_2: The recombinant EILV/CHIKV was structurally identical at 10 Å to wild-type CHIKV, as determined by single-particle cryo-electron microscopy, and it mimicked the early stages of CHIKV replication in vertebrate cells from attachment and entry to viral RNA delivery.