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](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2017/01/012517_MR_zika-scivis_main.jpg?fit=860%2C460&ssl=1)
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