Results:To show high incidence of immediate h ypersensitivity.At pre sent,Study focuses on its mecha-nism?prevention and treatment,but less s tud y is on diagnosis of objective formation.

• 结果速发型过敏反应的发病率较高,目前研究热点主要在其发病机理、预防及治疗等方面,而在客观形态学诊断方面的研究较少。