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Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Bioanalysis 2021 ; 13 (15): 1183-1193 Nephropedia Template TP
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Validation of high-throughput, semiquantitative solid-phase SARS coronavirus-2 serology assays in serum and dried blood spot matrices #MMPMID34114884
Maritz L; Woudberg NJ; Bennett AC; Soares A; Lapierre F; Devine J; Kimberg M; Bouic PJ
Bioanalysis 2021[Aug]; 13 (15): 1183-1193 PMID34114884show ga
Aim: Serological assays for the detection of anti-SARS coronavirus-2 (SARS-CoV-2) antibodies are essential to the response to the global pandemic. A ligand binding-based serological assay was validated for the semiquantitative detection of IgG, IgM, IgA and neutralizing antibodies (nAb) against SARS-CoV-2 in serum. Results: The assay demonstrated high levels of diagnostic specificity and sensitivity (85-99% for all analytes). Serum IgG, IgM, IgA and nAb correlated positively (R(2) = 0.937, R(2) = 0.839, R(2) = 0.939 and R(2) = 0.501, p < 0.001, respectively) with those measured in dried blood spot samples collected using the hemaPEN((R)) microsampling device (Trajan Scientific and Medical, Victoria, Australia). In vitro SARS-CoV-2 pseudotype neutralization correlated positively with the solid phase nAb signals in convalescent donors (R(2) = 0.458, p < 0.05). Conclusion: The assay is applicable in efficacy studies, infection monitoring and postmarketing surveillance following vaccine rollout.