Using ELISA exainine serum special IgE in 211 cases showed that there are higher positive rate in urticaria chronica,which verify that inhalant and foods are the important cause which lead to urtiearia chronica.

• 用酶联免疫法对 2 1 1例血清特异性IgE的检测 ,显示慢性荨麻疹患者的血清中特异性IgE的阳性率是比较高的 ,并证明吸入物和食物仍是目前诱发慢性荨麻疹的重要病因