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Sensitivity evaluation of 2019 novel coronavirus (SARS-CoV-2) RT-PCR detection kits and strategy to reduce false negative
yunying zhou; Fengyan Pei; Li Wang; Huailong Zhao; Huanjie Li; Mingyu Ji; Weihua Yang; Qingxi Wang; Qianqian Zhao; Yunshan Wang.
Afiliación
  • yunying zhou; Jinan Central Hospital, Cheeloo College of Medicine, Shandong University
  • Fengyan Pei; Jinan Central Hospital Affiliated to Shandong University
  • Li Wang; inan Infectious Disease Hospital, Shandong University
  • Huailong Zhao; Jinan Center for Disease Control and Prevention
  • Huanjie Li; Jinan Central Hospital Affiliated to Shandong University
  • Mingyu Ji; Jinan Central Hospital Affiliated to Shandong University
  • Weihua Yang; Jinan Central Hospital Affiliated to Shandong University
  • Qingxi Wang; Jinan Central Hospital Affiliated to Shandong University
  • Qianqian Zhao; Jinan Central Hospital Affiliated to Shandong University
  • Yunshan Wang; Jinan Central Hospital Affiliated to Shandong University
Preprint en En | PREPRINT-MEDRXIV | ID: ppmedrxiv-20083956
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ABSTRACT
An ongoing outbreak of pneumonia associated with SARS-CoV-2 has now been confirmed globally. In absence of effective vaccines, infection prevention and control through diagnostic testing and quarantine is critical. Early detection and differential diagnosis of respiratory infections increases the chances for successful control of COVID-19 disease. The nucleic acid RT-PCR test is regarded as the current standard for molecular diagnosis with high sensitivity. However, the highest specificity confirmation target ORF1ab gene is considered to be less sensitive than other targets in clinical application. In addition, a large amount of recent evidence indicates that the initial missed diagnosis of asymptomatic patients with SARS-CoV-2 and discharged patients with "re-examination positive" may be due to low viral load, and the ability of rapid mutation of coronavirus also increases the rate of false negative results. We aimed to evaluate the sensitivity of different nucleic acid detection kits so as to make recommendations for the selection of validation kit, and amplify the suspicious result to be reportable positive by means of simple continuous amplification, which is of great significance for the prevention and control of the current epidemic and the discharge criteria of low viral load patients.
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Texto completo: 1 Colección: 09-preprints Base de datos: PREPRINT-MEDRXIV Tipo de estudio: Diagnostic_studies / Experimental_studies / Prognostic_studies Idioma: En Año: 2020 Tipo del documento: Preprint
Texto completo: 1 Colección: 09-preprints Base de datos: PREPRINT-MEDRXIV Tipo de estudio: Diagnostic_studies / Experimental_studies / Prognostic_studies Idioma: En Año: 2020 Tipo del documento: Preprint