As HIV infects the body, it destroys Cd4 helper lymphocyte(辅助淋巴细胞) by using them to make copies of itself. This causes the immune system(i* 系统) to not work wel HIV stands for Human Immunodeficiency Virus(人类 免疫缺陷病毒). Immuno” means the immune system and deficiency" means lackingAs HIV infects the body, it destroys CD4 helper lymphocyte (辅助淋巴细胞) by using them to make copies of itself. This causes the immune system (免疫 系统) to not work well. HIV stands for Human Immunodeficiency Virus(人类 免疫缺陷病毒). “Immuno” means the immune system and “deficiency” means lacking