As Zika looms, U.S. health officials worry about the neighbors
Saron Wyatt pointed to the secluded end of her small street in Houston’s impoverished Fifth Ward, where a mound of old tires keeps popping up. Always a trashy nuisance, it’s now a growing danger. Tires collect water and become prime breeding grounds for mosquitoes — especially the ones that spread Zika virus disease and other tropical mosquito-borne illnesses. Wyatt, a mother of five, doesn’t know where the tires are coming from. But she’s worried about it, and so are health…