Peng Liyuan (L), wife of Chinese President Xi Jinping, and World Health Organization goodwill ambassador for tuberculosis and HIV/AIDS and UNESCO special envoy for the advancement of girls' and women's education, meets with Panamanian First Lady Lorena Castillo Garcia, a special ambassador for UNAIDS in Latin America, in Panama City, Panama, Dec. 3, 2018. Peng and Castillo jointly attended a publicizing activity on AIDS prevention and treatment on Monday. (Xinhua/Yan Yan)