Â鶹Éç

Available for over a year

Prevention is regarded as the best way to limit the spread of Zika, which has been linked to birth defects. In Brazil, they're fumigating streets and handing out insect repellant. Katy Watson reports from El Salvador on a novel way to stop mosquitoes breeding. Picture shows sambo fish from a household water butt. (Credit: Â鶹Éç)