Health officials from the United States and the World Health Organization (WHO) have issued blunt warnings at the beginning of a tour of southeast Asian nations grappling with bird flu outbreaks.
Health officials from the United States and the World Health Organization (WHO) have issued blunt warnings at the beginning of a tour of southeast Asian nations grappling with bird flu outbreaks.
美国和世界卫生组织的官员在开始出访应对禽流感疫情的东南亚国家之际发出了坦率的警告。