裂谷热症状通常持续4至7天，此后通过抗体出现即可检出免疫反应，血液中的病毒也随之逐渐消失。
The symptoms of RVF usually last from four to seven days, after which time the immune response becomes detectable with the appearance of antibodies and the virus gradually disappears from the blood.
杜克大学的一个研究小组正在使用脊髓灰质炎病毒感染肿瘤细胞，这会激起了一种持续数月的免疫反应，肿瘤永久地消失了。
A team at Duke University is using a polio virus to infect tumor cells. It sets off an immune response that lasts for several months. The tumor goes away permanently.
艾滋病的抗逆转录病毒治疗（ART）的副反应影响到生活质量（QOL）和看护的持续性，并影响卫生保健的结果。
Side effects from antiretroviral therapy (ART) for HIV impact quality of life (QOL) and adherence to care, and they influence decisions about health care.
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