对引起艾滋病的人类免疫缺陷病毒现在还没有治疗方法，但是多种药物混合治疗可以抑制病毒复制，阻止其破坏免疫系统。
There is no cure for the human immunodeficiency virus that causes AIDS but combinations of drugs can keep the virus from replicating and damaging the immune system.
尽管环境是多种微生物的贮藏之所，但是，除非是免疫缺陷人群，它极少引起疾病传播。
Although the environment serves as a reservoir for a variety of microorganisms, it is rarely implicated in disease transmission except in the immunocompromised population.
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