IE 11 is not supported. For an optimal experience visit our site on another browser.

Zika virus fears grow; now 15 cases in Miami


With a new Zika case reported in Miami, the head of the CDC says that mosquitoes are harder to wipe out than expected. Officials used a plane to spray a 10-square mile area with insecticide, but overnight rain may render the move ineffective. NBC’s Kerry Sanders reports for TODAY from Miami. (Run time: 2:43)