Serologic Response to SARS-CoV-2 in COVID-19 Patients with Different Severity

The immense patient number caused by coronavirus disease 2019 (COVID-19) global pandemic brings the urge for more knowledge about its immunological features, including the profile of basic immune parameters. In this study, eighty-eight reported COVID-19 patients in Wuhan were recruited from January...

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Veröffentlicht in:Virologica Sinica 2020-12, Vol.35 (6), p.752-757
Hauptverfasser: Kong, Wen-Hua, Zhao, Rong, Zhou, Jun-Bo, Wang, Fang, Kong, De-Guang, Sun, Jian-Bin, Ruan, Qiong-Fang, Liu, Man-Qing
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container_issue 6
container_start_page 752
container_title Virologica Sinica
container_volume 35
creator Kong, Wen-Hua
Zhao, Rong
Zhou, Jun-Bo
Wang, Fang
Kong, De-Guang
Sun, Jian-Bin
Ruan, Qiong-Fang
Liu, Man-Qing
description The immense patient number caused by coronavirus disease 2019 (COVID-19) global pandemic brings the urge for more knowledge about its immunological features, including the profile of basic immune parameters. In this study, eighty-eight reported COVID-19 patients in Wuhan were recruited from January to February, 2020, including 32 severe/critical cases and 56 mild/moderate cases. Their mean age was 56.43 years (range 17–83) and gender ratio (male/female) was 43:45. We tested SARS-CoV-2 RNA with commercial kits, investigated the level of serologic IgM and IgG antibodies against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) using magnetic particle chemiluminescence immunoassays, and compared the results of serologic tests and nucleic acid test (NAT). Among 88 patients, 95.45% were confirmed as positive by the combination of NAT and antibody test, which was significantly higher ( P  
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In this study, eighty-eight reported COVID-19 patients in Wuhan were recruited from January to February, 2020, including 32 severe/critical cases and 56 mild/moderate cases. Their mean age was 56.43 years (range 17–83) and gender ratio (male/female) was 43:45. We tested SARS-CoV-2 RNA with commercial kits, investigated the level of serologic IgM and IgG antibodies against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) using magnetic particle chemiluminescence immunoassays, and compared the results of serologic tests and nucleic acid test (NAT). Among 88 patients, 95.45% were confirmed as positive by the combination of NAT and antibody test, which was significantly higher ( P  &lt; 0.001) than by single nucleic acid test (73.86%) or serologic test (65.91%). Then the correlation between temporal profile and the level of antibody response was analyzed. It showed that seroconversion started on day 5 after disease onset and IgG level was rose earlier than IgM. 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Sin</addtitle><addtitle>Virol Sin</addtitle><description>The immense patient number caused by coronavirus disease 2019 (COVID-19) global pandemic brings the urge for more knowledge about its immunological features, including the profile of basic immune parameters. In this study, eighty-eight reported COVID-19 patients in Wuhan were recruited from January to February, 2020, including 32 severe/critical cases and 56 mild/moderate cases. Their mean age was 56.43 years (range 17–83) and gender ratio (male/female) was 43:45. We tested SARS-CoV-2 RNA with commercial kits, investigated the level of serologic IgM and IgG antibodies against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) using magnetic particle chemiluminescence immunoassays, and compared the results of serologic tests and nucleic acid test (NAT). Among 88 patients, 95.45% were confirmed as positive by the combination of NAT and antibody test, which was significantly higher ( P  &lt; 0.001) than by single nucleic acid test (73.86%) or serologic test (65.91%). Then the correlation between temporal profile and the level of antibody response was analyzed. It showed that seroconversion started on day 5 after disease onset and IgG level was rose earlier than IgM. Comparison between patients with different disease severity suggested early seroconversion and high antibody titer were linked with less severe clinical symptoms. 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Sin</stitle><addtitle>Virol Sin</addtitle><date>2020-12-01</date><risdate>2020</risdate><volume>35</volume><issue>6</issue><spage>752</spage><epage>757</epage><pages>752-757</pages><issn>1674-0769</issn><issn>1995-820X</issn><eissn>1995-820X</eissn><abstract>The immense patient number caused by coronavirus disease 2019 (COVID-19) global pandemic brings the urge for more knowledge about its immunological features, including the profile of basic immune parameters. In this study, eighty-eight reported COVID-19 patients in Wuhan were recruited from January to February, 2020, including 32 severe/critical cases and 56 mild/moderate cases. Their mean age was 56.43 years (range 17–83) and gender ratio (male/female) was 43:45. We tested SARS-CoV-2 RNA with commercial kits, investigated the level of serologic IgM and IgG antibodies against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) using magnetic particle chemiluminescence immunoassays, and compared the results of serologic tests and nucleic acid test (NAT). Among 88 patients, 95.45% were confirmed as positive by the combination of NAT and antibody test, which was significantly higher ( P  &lt; 0.001) than by single nucleic acid test (73.86%) or serologic test (65.91%). Then the correlation between temporal profile and the level of antibody response was analyzed. It showed that seroconversion started on day 5 after disease onset and IgG level was rose earlier than IgM. Comparison between patients with different disease severity suggested early seroconversion and high antibody titer were linked with less severe clinical symptoms. These results supported the combination of serologic testing and NAT in routine COVID-19 diagnosis and provided evidence on the temporal profile of antibody response in patients with different disease severity.</abstract><cop>Singapore</cop><pub>Springer Singapore</pub><pmid>32705575</pmid><doi>10.1007/s12250-020-00270-x</doi><tpages>6</tpages><orcidid>https://orcid.org/0000-0002-9754-3102</orcidid><oa>free_for_read</oa></addata></record>
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subjects Adolescent
Adult
Aged
Aged, 80 and over
Antibodies
Antibodies, Viral - immunology
Antibody Formation
Antibody response
Biochemistry
Biomedical and Life Sciences
Biomedicine
Chemiluminescence
China - epidemiology
Coronaviridae
Coronaviruses
COVID-19
COVID-19 - blood
COVID-19 - epidemiology
COVID-19 - immunology
COVID-19 - virology
COVID-19 Nucleic Acid Testing - methods
COVID-19 Serological Testing - methods
Female
Humans
Immunoglobulin G
Immunoglobulin G - blood
Immunoglobulin G - immunology
Immunoglobulin M
Immunoglobulin M - blood
Immunoglobulin M - immunology
Luminescent Measurements - methods
Male
Medical Microbiology
Microbial Genetics and Genomics
Microbiology
Middle Aged
Oncology
Pandemics
Real-Time Polymerase Chain Reaction - methods
Research Article
Ribonucleic acid
RNA
SARS-CoV-2 - genetics
SARS-CoV-2 - immunology
Seroconversion
Severe acute respiratory syndrome coronavirus 2
Virology
Young Adult
title Serologic Response to SARS-CoV-2 in COVID-19 Patients with Different Severity
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