China National Center for Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment, Chinese Center for Disease Control and Prevention (China CDC) - Jiangsu Provincial Center for Disease Control and Prevention, affiliation not provided to SSRN, China National Center for Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment, Chinese Center for Disease Control and Prevention (China CDC) - Jiangsu Provincial Center for Disease Control and Prevention and Shandong Agricultural University