Sent_en: 2zh The United Nations World Health Organization (WHO) stated that the H1N1 virus, more commonly known as swine flu, has become the dominant flu strain in the world.
Sent_yy: 联合国世界卫生组织（WHO）表示，H1N1病毒，通常被称为猪流感，已成为世界上主要的流感病毒株。