This virus can kill brain cells that might otherwise morph into a deadly cancer.
The Zika virus struck fear into the hearts of parents and would-be parents, last year. Moms who were infected during pregnancy often gave birth to babies with serious birth defects, including small brains. A number of the problems linked to the disease came from how the virus impacted the developing nervous system. But someday, Zika might also gain renown as a medical therapy — to treat deadly brain cancers.