As Summer Approaches, Health Officials Dig In Against Zika

With warmer weather on its way in the U.S., worries about Zika are back. More than 5,000 cases of the mosquito-borne virus were reported in the country last year, but that's only a fraction of cases worldwide.

Here & Now's Jeremy Hobson speaks with Scott Weaver, director of the Institute for Human Infections and Immunity at the University of Texas Medical Branch, about the ongoing fight.