Chang Gregory C, Bingham Trista, Patel Hetal K, Mungai Elisabeth, Sleeman Katrina, Benech Irene, Selenic Dejana, Metz Melissa, Duong Yen T, Saito Suzue, Shang Judith, Dokubo Emily K, Eno Laura, Motsoane Tsietso, Ryan Caroline, Auld Andrew, Kim Evelyn, Maida Alice, Malewo Optatus, Juma James M, Awor Anna Colletar, Kancheya Nzali, Ndongmo Clement B, Balachandra Shirish, Getaneh Yimam, Lulseged Sileshi, Eshetu Frehywot, Young Peter W, Williams Daniel B, West Christine, Justman Jessica, Parekh Bharat S, Voetsch Andrew C
Division of Global HIV and TB, Global Health Center, CDC, Atlanta, GA, USA.
Public Health Institute, Oakland, California, USA.
J Acquir Immune Defic Syndr. 2025 Aug 15. doi: 10.1097/QAI.0000000000003745.
The Undetectable=Untransmittable (U=U) campaign, grounded in strong scientific evidence, affirms that people living with HIV (PLHIV) with an undetectable viral load (VL), defined as ≤50 copies per milliliter (c/mL) or <200 c/mL of HIV RNA, do not transmit HIV to sexual partners. In resource-limited settings, VL is commonly measured using dried blood spot (DBS) testing, which has a higher limit of detection (550-1000 c/mL). We report the proportion of PLHIV with VL <1000 c/mL who also had VL <200 c/mL and ≤50 c/mL to inform interpretation of DBS VL results under U=U.
We analyzed data from 13 cross-sectional nationally representative surveys (2015-2019), including PLHIV aged 15-59 years receiving antiretroviral therapy (ART) with valid plasma VL results. We estimated the proportion of participants with VL <200 c/mL and ≤50 c/mL among those with VL <1000 c/mL, overall and among those on ART ≥12 months using survey weights.
Among 16,533 PLHIV across 13 countries, 87.3% had VL <1000 c/mL. For PLHIV with VL <1000 c/mL, 95.4% had VL <200 c/mL and 84.9% had VL ≤50 c/mL. Among those on ART ≥12 months, 96.6% had VL <200 c/mL, and 87.4% had VL ≤50 c/ml.
Most PLHIV with VL <1000 c/mL had a VL <200 c/mL and ≤50 c/mL, indicating no risk of sexual HIV transmission. Our findings provide evidence that in settings relying on DBS VL testing, most PLHIV with VL <1000 c/mL likely fall below 200 c/mL or are undetectable based on the assay's lower limit of detection.
“检测不到即不传播”(U=U)运动以强有力的科学证据为基础,确认病毒载量(VL)检测不到(定义为每毫升HIV RNA≤50拷贝数(c/mL)或<200 c/mL)的艾滋病毒感染者(PLHIV)不会将HIV传播给性伴侣。在资源有限的环境中,病毒载量通常使用干血斑(DBS)检测来测量,其检测上限较高(550 - 1000 c/mL)。我们报告了病毒载量<1000 c/mL且同时病毒载量<200 c/mL和≤50 c/mL的艾滋病毒感染者的比例,以指导在“检测不到即不传播”原则下对干血斑病毒载量结果的解读。
我们分析了13项全国代表性横断面调查(2015 - 2019年)的数据,包括年龄在15 - 59岁接受抗逆转录病毒治疗(ART)且有有效血浆病毒载量结果的艾滋病毒感染者。我们使用调查权重估计了病毒载量<1000 c/mL的参与者中病毒载量<200 c/mL和≤50 c/mL的比例,整体情况以及接受ART≥12个月者中的比例。
在13个国家的16,533名艾滋病毒感染者中,87.3%的病毒载量<1000 c/mL。对于病毒载量<1000 c/mL的艾滋病毒感染者,95.4%的病毒载量<200 c/mL,84.9%的病毒载量≤50 c/mL。在接受ART≥12个月的人群中,9并接受抗逆转录病毒治疗的艾滋病毒感染者,以提供有关病毒载量检测结果的信息。
我们分析了13项全国代表性横断面调查(2015 - 2019年)的数据,这些调查对象为年龄在15 - 59岁、接受抗逆转录病毒治疗且有有效血浆病毒载量结果的艾滋病毒感染者。我们使用调查权重估计了病毒载量<1000 c/mL的参与者中病毒载量<200 c/mL和≤50 c/mL的比例,包括总体情况以及接受抗逆转录病毒治疗≥12个月者的情况。
在13个国家的16,533名艾滋病毒感染者中,87.3%的病毒载量<1000 c/mL。对于病毒载量<1000 c/mL的艾滋病毒感染者,95.4%的病毒载量<200 c/mL,84.9%的病毒载量≤50 c/mL。在接受抗逆转录病毒治疗≥12个月的人群中,96.6%的病毒载量<200 c/mL,87.4%的病毒载量≤50 c/mL。
大多数病毒载量<1000 c/mL的艾滋病毒感染者的病毒载量<200 c/mL且≤50 c/mL,这表明没有性传播艾滋病毒的风险。我们的研究结果提供了证据,即在依赖干血斑病毒载量检测的环境中,大多数病毒载量<1000 c/mL的艾滋病毒感染者的病毒载量可能低于200 c/mL,或者根据检测方法的较低检测下限是检测不到的。 6.6%的病毒载量<200 c/mL,87.4%的病毒载量≤50 c/mL。
大多数病毒载量<1000 c/mL的艾滋病毒感染者的病毒载量<200 c/mL且≤50 c/mL,这表明没有性传播艾滋病毒的风险。我们的研究结果提供了证据,即在依赖干血斑病毒载量检测的环境中,大多数病毒载量<1000 c/mL的艾滋病毒感染者的病毒载量可能低于200 c/mL,或者根据检测方法的较低检测下限是检测不到的。