In IVDUs, the balance of Th1/Th2 cells is disturbed, the ability of antivirus is weakened, and the infection inversely accelerates the disturbance of cellular immunity function.

• 静脉药瘾者Th1 Th2细胞失衡,机体抗病毒能力减弱,而病毒感染又加重细胞免疫功能紊乱。