However, between five and ten days after infection, most victims experience a "cytokine storm" --an intense inflammatory immune response--causing pneumonia, respiratory distress, and multiple organ failure.
患者多在感染的 5 至 10 天內，引發強烈的細胞酵素風暴，導致肺炎、呼吸窘迫、多重器官衰竭，病情又猛又急。