N Engl J Med:寨卡病毒在体液中的留存时间

2017-03-24 MedSci MedSci原创

研究人员前瞻性地评估了波多黎各新感染的受试者队列,包括150名寨卡新感染者(其中55名男性)。从纳入研究的当月及随后的第2、4、6个月,每周一次收集参与者的血清、尿液、唾液、精液和阴道分泌物。利用RT-PCR检测所有样本,并使用抗-寨卡 IgM 酶联免疫吸附试验检测血清。在第四周,如果参与者的样本中检测到寨卡病毒RNA,则以每两周一次的频率收集该参与者的样本直至所有样本检测呈阴性。研究人员使用We

近日,来自波多黎各国家艾滋病毒/艾滋病中心的研究人员报道了一项关于寨卡病毒在体液中的留存时间的研究, 相关研究成果刊登于国际杂志N Engl J Med上。

为了估计人体液体中可检测的Zika病毒(ZIKV)RNA的频率和持续时间,研究人员前瞻性地评估了波多黎各新感染的受试者队列,包括150名寨卡新感染者(其中55名男性)。从纳入研究的当月及随后的第2、4、6个月,每周一次收集参与者的血清、尿液、唾液、精液和阴道分泌物。利用RT-PCR检测所有样本,并使用抗-寨卡 IgM 酶联免疫吸附试验检测血清。在第四周,如果参与者的样本中检测到寨卡病毒RNA,则以每两周一次的频率收集该参与者的样本直至所有样本检测呈阴性。研究人员使用Weibull回归模型来估计每个个体体液中ZIKV RNA检测不到的时间,并以中位数和第95百分位数进行报告。

研究发现,血中寨卡RNA转阴的中位数、第95位百分位数时间为14天和54天,尿液中转阴的中位数、第95位百分位数时间分别为8天和39天,精液中转阴的中位数、第95位百分位数时间分别为34天和81天,少数参与者在唾液或阴道分泌物中检测到ZIKV RNA。

研究人员认为血清中寨卡RNA的留存时间较长对寨卡感染的诊断预防有重要意义。目前预防指南中推荐男性在寨卡病毒感染后6个月内应避免性行为或使用安全套,但本研究中95%的男性在暴露后约3个月时精液中已无寨卡RNA存在。

原始出处:

Gabriela Paz-Bailey, M.D., Ph.D., Eli S. Rosenberg, Ph.D. et al. Persistence of Zika Virus in Body Fluids — Preliminary Report. February 14, 2017DOI: 10.1056/NEJMoa1613108

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    2017-05-29 haouestc
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    2017-09-09 spoonycyy
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    2017-05-01 1e145228m78(暂无匿称)

    学习了,谢谢作者分享!

    0

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    2017-03-25 1ddf0692m34(暂无匿称)

    寨卡病毒病死率高

    0

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