nonproductive cough

... [Slight (Mild)] 轻度 ? [Dry cough (Nonproductive cough;hacking cough)] 干咳 ? [Wet cough (Moist cough)] 湿咳 ? ...

症状包括：发烧、肌肉疼痛、头痛、鼻炎、极度不 舒服(severe malaise)、 乾咳(nonproductive cough)、及喉咙痛(sore throat) …

...有痰性咳嗽」(productive cough)、无痰性乾嗽(nonproductive cough)。