Objective To investigate the activation of T lymphocytes and the T lymphocytes expressing coreceptor CCR5, CXCR4, their association with the disease progression.

• 目的 了解HIV 1感染者体内淋巴细胞的活化情况及表达第二受体CCR5、CXCR4的淋巴细胞活化状态 ,分析这些指标与疾病严重程度的关系 ,探讨HIV感染的免疫基础。