Thanks to work at Washington University and the Vanderbilt School of Medicine, scientists are a step closer to identifying a potential treatment for Zika.

Right now, the potential treatment has only been tested in mice.

Researchers say they've found an antibody that appears to protect mouse fetuses from becoming infected.

Zika cases are linked to birth defects.

At least 4,000 people in the U.S. have been diagnosed with Zika.