--FILE--pedoni a piedi passato a un fast food ristorante di KFC in città Huaian, est cinese della provincia di Jiangsu, 14 febbraio 2015. KFC, il più grande del mondo
--FILE--Pedestrians walk past a fastfood restaurant of KFC in Huaian city, east China's Jiangsu province, 14 February 2015. KFC, the world's largest chain of fried chicken restaurants, may face pressure from consumer and environmental groups to change how its poultry are raised after McDonald's Corp said it would switch to chicken raised without human antibiotics. McDonald's will phase out chicken raised with antibiotics that are important to human health over two years to allay concern that use of the drugs in meat production has exacerbated the rise of deadly "superbugs" that resist treatment. Both McDonald's and Yum are stepping up efforts to win back younger and wealthier diners lured away by chains such as such as Chipotle Mexican Grill Inc and Panera Bread Co, which boast antibiotic-free meats and other high-quality ingredients. Yum's KFC restaurants in China two years ago suffered a massive sales hit following local media reports that a few poultry farmers supplying KFC fed excessive levels of antibiotics to their chickens.
