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Table 1. Studies performed on blood samples for COVID-19 viral RNA detection

From: Detection of novel coronavirus (SARS-CoV-2) RNA in peripheral blood specimens

Study

Sample types

Detection rate %

RNA extraction method

RNA detection method

Confirmed test

Stage of disease

Refs.

Zheng et al.

Serum

41

MagNA Pure 96

RT-qPCR

Sputum and saliva samples

After admission

[12]

Wölfel et al.

Serum

0

RT-qPCR

Oro- or naso-pharyngeal swab specimens

Between 2 and 4 days after the onset of symptoms

[17]

Ling et al.

Serum

0

Magnetic bead-method nucleic acid extraction kit

RT-qPCR

Oropharyngeal swab

After admission

[18]

Zhang et al.

Whole blood and serum

Whole blood: 40

Serum: 20

High Pure Viral RNA Kit (Roche)

RT-qPCR

Oral swabs and anti-SARSr-CoV IgG and IgM ELISA test

After admission

[20]

Wang et al

Blood

1

RT-qPCR

Nasopharyngeal swabs

1 to 3 days after hospital admission

[23]

Chen et al

Serum

10.4

RT-qPCR

Throat swabs

Immediately after admission

[15]

Chen et al

Blood

10.5

Nucleic Acid Isolation Kit (Da’an Gene Corporation, Cat: DA0630)

RT-qPCR

Anal and pharyngeal swab

_

[16]

Huang et al

Plasma

15

Direct-zol

RNA Miniprep kit

RT-qPCR

Laboratory-confirmed 2019-nCoV infection by real-time RT-PCR and next-generation sequencing

_

[13]

Peng et al

Blood

22.2

Nucleic Acid Extraction and Purification Kit (SUPI‐1017; Supbio, Guangzhou, China)

RT-qPCR

Oropharyngeal swabs

After admission

[10]

Lescure et al

Serum

0

Extraction NucleoSpin Dx Virus kit (Macherey Nagel, Düren, Germany)

RT-qPCR

Nasopharyngeal swabs

After hospital admission

[24]

Kujawski et al

Serum

9.09

RT-qPCR and whole genome sequencing

Nasopharyngeal swabs and f laboratory-confirmed SARS-CoV-2

After admission

[11]

Chan et al

Serum

16.6

QIAamp Viral RNA Mini Kit (Qiagen, Hilden, Germany)

RT-qPCR

CT scan and laboratory-confirmed SARS-CoV-2

_

[25]

  1. RT-qPCR reverse transcriptase quantitative polymerase chain reaction