As Zika spreads, Florida town a study in bug-borne illness

Among the lessons local officials learned: the importance of home inspections by mosquito control technicians, media campaigns to "drain and cover" standing water and changes residents made in their own yards.

Rio resident Rachael Heid says that since she caught dengue in 2013, her neighborhood reduces its mosquito population by emptying birdbaths and vigilantly flipping garbage can lids and other containers catching water.