二患者为夫妻 ,农民 ,男 39岁 ,女 38岁 ,均因胸闷气短 ,全身乏力 ,阵发性咳嗽伴有粘液痰、血痰 ,皮肤瘙痒 4～ 5 d而就诊。曾自服感冒通、咳必清无效。追问病史 ,半月前有下田劳动、野外就餐、食入未洗生菜史。查体 :T37～ 38℃ ,皮肤局部有荨麻疹 ,肺呼吸音粗糙 ,可闻散在哮 Two patients are husband and wife, farmers, male 39 years old, female 38 years old, are due to chest tightness and shortness of breath, malaise, paroxysmal cough associated with mucus sputum, bloody sputum, itchy skin 4 to 5 days and treatment. Had served cold flu, cough will be ineffective. Asked history, there are Shimoda labor half months ago, wild dining, eating unwashed lettuce history. Physical examination: T37 ~ 38 ℃, local urticaria skin, lung breath sounds rough, can be heard scattered in the asthma