Duration of COVID-19 PCR positivity for Omicron vs earlier variants

被引：7

作者：

Kojima, N. ^{[1
]}

Roshani, A. ^{[2
]}

Klausner, J. D. ^{[3
]}

机构：

[1] Univ Calif Los Angeles, Dept Med, 10833 Le Conte Ave, Los Angeles, CA 90095 USA

[2] Curative Inc, San Dimas, CA USA

[3] Univ Southern Calif, Keck Sch Med, Dept Med & Populat, Los Angeles, CA 90033 USA

来源：

JOURNAL OF CLINICAL VIROLOGY PLUS | 2022年 / 2卷 / 03期

关键词：

COVID-19; SARS-CoV-2; Vaccination; Prior infection;

D O I：

10.1016/j.jcvp.2022.100085

中图分类号：

R51 [传染病];

学科分类号：

100401 ;

摘要：

There have been reports that the Omicron variant of SARS-CoV-2 is milder and may resolve more quickly than earlier variants of SARS-CoV-2, like the Delta variant. Due to a dearth of studies on duration of PCR positivity for the Omicron variant, we studied this question in a cohort of routinely tested employees that work in a large laboratory. We found that there was no difference in duration of PCR positivity among those infected with the Omicron variant of SARS-CoV-2 versus earlier variants of SARS-CoV-2. That suggests in a clinical study that the increased infectiousness of Omicron might likely be due to factors related to viral and host cell interactions, rather than viral load or duration of infectivity, which has been suggested in immune escape studies.

引用

页数：2

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