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10.1016/j.jim.2020.112909

http://scihub22266oqcxt.onion/10.1016/j.jim.2020.112909
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suck abstract from ncbi


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pmid33166549      J+Immunol+Methods 2021 ; 489 (ä): 112909
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  • Analytical performance of lateral flow immunoassay for SARS-CoV-2 exposure screening on venous and capillary blood samples #MMPMID33166549
  • Black MA; Shen G; Feng X; Garcia Beltran WF; Feng Y; Vasudevaraja V; Allison D; Lin LH; Gindin T; Astudillo M; Yang D; Murali M; Iafrate AJ; Jour G; Cotzia P; Snuderl M
  • J Immunol Methods 2021[Feb]; 489 (ä): 112909 PMID33166549show ga
  • OBJECTIVES: We validate the use of a lateral flow immunoassay (LFI) intended for rapid screening and qualitative detection of anti-SARS-CoV-2 IgM and IgG in serum, plasma, and whole blood, and compare results with ELISA. We also seek to establish the value of LFI testing on blood obtained from a capillary blood sample. METHODS: Samples collected by venous blood draw and finger stick were obtained from patients with SARS-CoV-2 detected by RT-qPCR and control patients. Samples were tested with Biolidics 2019-nCoV IgG/IgM Detection Kit lateral flow immunoassay, and antibody calls were compared with ELISA. RESULTS: Biolidics LFI showed clinical sensitivity of 92% with venous blood at 7 days after PCR diagnosis of SARS-CoV-2. Test specificity was 92% for IgM and 100% for IgG. There was no significant difference in detecting IgM and IgG with Biolidics LFI and ELISA at D0 and D7 (p = 1.00), except for detection of IgM at D7 (p = 0.04). Capillary blood of SARS-CoV-2 patients showed 93% sensitivity for antibody detection. CONCLUSIONS: Clinical performance of Biolidics 2019-nCoV IgG/IgM Detection Kit is comparable to ELISA and was consistent across sample types. This provides an opportunity for decentralized rapid testing and may allow point-of-care and longitudinal self-testing for the presence of anti-SARS-CoV-2 antibodies.
  • |Antibodies, Viral/*blood/*immunology[MESH]
  • |COVID-19/*blood/genetics/*immunology[MESH]
  • |Capillaries[MESH]
  • |Enzyme-Linked Immunosorbent Assay[MESH]
  • |Humans[MESH]
  • |Immunoglobulin G/blood/immunology[MESH]
  • |Immunoglobulin M/blood/immunology[MESH]
  • |Immunologic Tests/*standards[MESH]
  • |Retrospective Studies[MESH]
  • |SARS-CoV-2/*immunology/*isolation & purification[MESH]
  • |Sensitivity and Specificity[MESH]


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