Development of immunoglobulin G enzyme-linked immunosorbent assay for the serodiagnosis of severe acute respiratory syndrome.
Identifieur interne : 004865 ( Main/Exploration ); précédent : 004864; suivant : 004866Development of immunoglobulin G enzyme-linked immunosorbent assay for the serodiagnosis of severe acute respiratory syndrome.
Auteurs : Pei-Lan Shao [Taïwan] ; Po-Ren Hsueh ; Luan-Yin Chang ; Chun-Yi Lu ; Chuan-Liang Kao ; Yu-Ping Chiang ; Hsiang-Yi Huang ; Fu-Yuan Huang ; Chin-Yun Lee ; Lung-Ji Chang ; T-C Wu ; Li-Min HuangSource :
- Journal of biomedical science [ 1021-7770 ] ; 2005.
Descripteurs français
- KwdFr :
- MESH :
- analyse : Immunoglobuline G.
- diagnostic : Syndrome respiratoire aigu sévère.
- immunologie : Antigènes viraux, Syndrome respiratoire aigu sévère, Virus du SRAS.
- Humains, Sensibilité et spécificité, Statistiques comme sujet, Test ELISA, Tests sérologiques.
English descriptors
- KwdEn :
- Antigens, Viral (immunology), Enzyme-Linked Immunosorbent Assay (methods), Humans, Immunoglobulin G (analysis), SARS Virus (immunology), Sensitivity and Specificity, Serologic Tests (methods), Severe Acute Respiratory Syndrome (diagnosis), Severe Acute Respiratory Syndrome (immunology), Statistics as Topic.
- MESH :
- chemical , analysis : Immunoglobulin G.
- chemical , immunology : Antigens, Viral.
- diagnosis : Severe Acute Respiratory Syndrome.
- immunology : SARS Virus, Severe Acute Respiratory Syndrome.
- methods : Enzyme-Linked Immunosorbent Assay, Serologic Tests.
- Humans, Sensitivity and Specificity, Statistics as Topic.
Abstract
Severe acute respiratory syndrome (SARS) is an emerging infectious disease caused by a novel SARS-associated coronavirus (SARS-CoV). The clinical characteristics are high fever, rapidly progressive diffuse pneumonitis and respiratory distress. It is highly infectious through intimate contact or direct contact with infectious body fluids. Outbreaks within communities and hospitals have been reported. Development of rapid and reliable diagnostic tools is urgently needed. We developed an immunoglobulin G (IgG) enzyme-linked immunosorbent assay (ELISA), using whole virus antigen of SARS-CoV. Eighty-six serum samples collected from patients who were hospitalized for other causes were examined to determine the cut-off O.D. value. The cut-off O.D. value was defined as 0.175 by calculating the mean O.D. value of the 86 sera plus 3 standard deviations. To determine the sensitivity and specificity of the ELISA, 56 positive sera and 204 negative sera were tested. The sensitivity was 96.4% and the specificity was 100%. The results suggest that the IgG ELISA using whole virus antigen of SARS-CoV has a high sensitivity and specificity in detecting SARS IgG antibodies. This IgG ELISA is a powerful tool for serodiagnosis of SARS.
DOI: 10.1007/s11373-004-8184-6
PubMed: 15864739
Affiliations:
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Le document en format XML
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<front><div type="abstract" xml:lang="en">Severe acute respiratory syndrome (SARS) is an emerging infectious disease caused by a novel SARS-associated coronavirus (SARS-CoV). The clinical characteristics are high fever, rapidly progressive diffuse pneumonitis and respiratory distress. It is highly infectious through intimate contact or direct contact with infectious body fluids. Outbreaks within communities and hospitals have been reported. Development of rapid and reliable diagnostic tools is urgently needed. We developed an immunoglobulin G (IgG) enzyme-linked immunosorbent assay (ELISA), using whole virus antigen of SARS-CoV. Eighty-six serum samples collected from patients who were hospitalized for other causes were examined to determine the cut-off O.D. value. The cut-off O.D. value was defined as 0.175 by calculating the mean O.D. value of the 86 sera plus 3 standard deviations. To determine the sensitivity and specificity of the ELISA, 56 positive sera and 204 negative sera were tested. The sensitivity was 96.4% and the specificity was 100%. The results suggest that the IgG ELISA using whole virus antigen of SARS-CoV has a high sensitivity and specificity in detecting SARS IgG antibodies. This IgG ELISA is a powerful tool for serodiagnosis of SARS.</div>
</front>
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