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. 2020 Sep;26(9):2265-2267.
doi: 10.3201/eid2609.201848. Epub 2020 Jun 17.

Severe Acute Respiratory Syndrome Coronavirus 2 among Asymptomatic Workers Screened for Work Resumption, China

Xiaoyu Han, Xiong Wei, Osamah Alwalid, Yukun Cao, Yumin Li, Li Wang, Heshui Shi

Severe Acute Respiratory Syndrome Coronavirus 2 among Asymptomatic Workers Screened for Work Resumption, China

Xiaoyu Han et al. Emerg Infect Dis. 2020 Sep.

Abstract

After the outbreak in Wuhan, China, we assessed 29,299 workers screened for severe acute respiratory syndrome coronavirus 2 by reverse transcription PCR. We noted 18 (0.061%) cases of asymptomatic infection; 13 turned negative within 8.0 days, and 41 close contacts tested negative. Among 6 contacts who had serologic tests, none were positive.

Keywords: COVID-19; China; SARS; SARS-CoV-2; Wuhan; coronavirus; coronavirus disease; respiratory infections; severe acute respiratory syndrome coronavirus 2; viruses; zoonoses.

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References

    1. Qiu J. Covert coronavirus infections could be seeding new outbreaks. Nature. 2020; Epub ahead of print. 10.1038/d41586-020-00822-x - DOI - PubMed
    1. Pan A, Liu L, Wang C, Guo H, Hao X, Wang Q, et al. Association of public health interventions with the epidemiology of the COVID-19 outbreak in Wuhan, China. JAMA. 2020;323:1–9. 10.1001/jama.2020.6130 - DOI - PMC - PubMed
    1. Wuhan Municipal Health Commission. CN-HEALTHCARE: Hubei health, 2020. April 19 [in Chinese] [cited 2020 May 25]. https://www.cn-healthcare.com/articlewm/20200419/content-1105403.html
    1. Furukawa NW, Brooks JT, Sobel J. Evidence supporting transmission of severe acute respiratory syndrome coronavirus 2 while presymptomatic or asymptomatic. Emerg Infect Dis. 2020;26: Epub ahead of print. 10.3201/eid2607.201595 - DOI - PMC - PubMed
    1. Arons MM, Hatfield KM, Reddy SC, Kimball A, James A, Jacobs JR, et al.; Public Health–Seattle and King County and CDC COVID-19 Investigation Team. Presymptomatic SARS-CoV-2 infections and transmission in a skilled nursing facility. N Engl J Med. 2020;382:2081–90. 10.1056/NEJMoa2008457 - DOI - PMC - PubMed

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