Sent_en: 2zh On the basis of available evidence, and these expert assessments of the evidence, the scientific criteria for an influenza pandemic have been met.
  SNT.127713.8490	I have therefore decided to raise the level of influenza pandemic alert from phase 5 to phase 6, said the the WHO's director Margaret Chan in a press conference earlier today.
Sent_yy: “根据现有证据和这些证据的专家评估，已经达到了流感大流行的科学标准。