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10.1007/s12223-021-00861-5

http://scihub22266oqcxt.onion/10.1007/s12223-021-00861-5
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suck abstract from ncbi


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pmid33825112      Folia+Microbiol+(Praha) 2021 ; 66 (4): 579-586
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  • Role of rapid antibody and ELISA tests in the evaluation of serological response in patients with SARS-CoV-2 PCR positivity #MMPMID33825112
  • Cosgun Y; Altas AB; Kuzucu EA; Guner R; Erdinc S; Eser F; Kilic EK; Korukluoglu G
  • Folia Microbiol (Praha) 2021[Aug]; 66 (4): 579-586 PMID33825112show ga
  • From 7 to 8 days after the onset of symptoms in COVID-19 infection, the sensitivity of serological tests was found to be higher than that of nucleic acid tests. The aims of this study were to investigate antibody levels in patients with SARS-CoV-2 infection, to examine the relationship between antibody levels and virus load, and to evaluate the performance of 2 different commercial kits. A total of 103 patients with confirmed SARS-CoV-2 infection were included in the study. Antibodies against SARS-CoV-2 in serum samples taken from patients were investigated simultaneously with anti-SARS-CoV-2 IgG and IgA ELISAs (Euroimmun) and COVID-19 (SARS-CoV-2) IgG/IgM (Deep Blue) kits. No positivity was detected with any of the test kits in 18 (17.4%) of the 103 samples. In symptomatic patients, 100% of IgM and IgA tests were found to be positive in the group sampled after 10 days, while 100% of IgG tests were found positive after 20 days. The sensitivity of the Deep Blue COVID-19 IgG antibody kit was calculated as 81.48% and the specificity was 97.96%. While there was no statistically significant difference between the PCR CT and ELISA OD values, a positive correlation was found between the ELISA OD values and the days since the date of symptom initiation. The sensitivity and specificity of the rapid antibody test used in this study were found to be quite high. In conditions where ELISA tests cannot be applied, it is thought that it can give an idea in terms of the presence of antibodies as a simple and fast test. Although ELISA tests are valuable in the diagnosis of COVID-19 during the acute period, they are tests that can be used safely in the diagnosis of previous infections and seroepidemiological studies.
  • |*COVID-19 Nucleic Acid Testing[MESH]
  • |Antibodies, Viral/*blood[MESH]
  • |COVID-19 Serological Testing/*methods[MESH]
  • |COVID-19/diagnosis/*immunology[MESH]
  • |Enzyme-Linked Immunosorbent Assay/*methods[MESH]
  • |Female[MESH]
  • |Humans[MESH]
  • |Male[MESH]


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