This Wednesday, May 30, 2012 photo shows one of Jonah McDonald’s chickens at his Atlanta home. McDonald teaches about chickens at an Atlanta school and says he always advises students to wash their hands after handling chickens. Mail-order chicks that appeal to kids and backyard farmers have been linked to the U.S.’s longest running salmonella outbreak, sickening more than 300 people – many of them young children. McDonald said he doesn’t know of anyone who’s gotten salmonella from handling chickens. “The kids in my neighborhood come over and feed scraps into the cages,” he added. “It’s a real community thing.” (AP Photo/John Bazemore)