Map of Zika virus reveals how it shifts as it matures

New look at the immature virus could hint at how Zika becomes infectious

cryo-electron microscopy map of immature zika virus

ZIKA PEEK Inside an immature Zika virus (interior shown at right), the protein and RNA core (dark blue) contacts the inner layer of the viral membrane (aqua, see arrows). A surface view (left) shows proteins that make up the exterior (red, yellow and green).

V. Prasad et al/Nature Structural & Molecular Biology 2017

Before an immature Zika virus becomes infectious, it does some major remodeling.