Methods HCV NS 3 and HCV NS 5 antigen were detected by immunohistochemical method in 33 cases with CHC.

• 方法采用免疫组化S－P法以抗－HCVNS3和抗－HCVNS5检测了33例慢性丙型肝炎（CHC）患者胃粘膜组织中HCVNS3及HCVNS5抗原。