Methods:Po sitive and suspected positive serums determined by an inderect immunofluo-resce nt(IIF)technique,as an initial screening method,were subjected to ELISA tests fo r target antigens of myeloperoxi-dase(MPO)and proteinase3(PR3).

• 方法:以间接免疫荧光(IIF)法作初筛,阳性及可疑血清经酶联免疫吸附试验(ELISA)法分别检测蛋白酶3(PR3)和髓过氧化物酶(MPO)两种靶抗原特异性。