感染 SARS-CoV-2 的 6 月龄以下婴儿呼吸道病毒载量最高。
Infants Younger Than 6 Months Infected With SARS-CoV-2 Show the Highest Respiratory Viral Loads.
机构信息
Universidad de Buenos Aires-Instituto de Investigaciones Biomédicas en Retrovirus y SIDA, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina.
出版信息
J Infect Dis. 2022 Feb 1;225(3):392-395. doi: 10.1093/infdis/jiab577.
Abstract
There is a paucity of reports on the characteristics of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in infants, because most studies have grouped infants with older children. We analyzed the viral loads of 45318 SARS-CoV-2-positive nasopharyngeal swab samples obtained in Buenos Aires, Argentina. Infants younger than 6 months presented higher viral loads than any other age group. Children older than 6 months showed significantly lower viral loads, similar to those founds in adults. This observation raises new questions regarding the role of infants in the spreading of SARS-CoV-2 infection.
摘要
关于婴儿严重急性呼吸综合征冠状病毒 2（SARS-CoV-2）感染的特征，报告较少，因为大多数研究将婴儿与年龄较大的儿童归为一组。我们分析了在阿根廷布宜诺斯艾利斯采集的 45318 份 SARS-CoV-2 阳性鼻咽拭子样本的病毒载量。6 个月以下的婴儿比任何其他年龄组的病毒载量都高。6 个月以上的儿童的病毒载量明显较低，与成人相似。这一观察结果提出了有关婴儿在 SARS-CoV-2 感染传播中所起作用的新问题。
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