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10.3390/genes11101183

http://scihub22266oqcxt.onion/10.3390/genes11101183
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33053675!7599812!33053675
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suck abstract from ncbi


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pmid33053675      Genes+(Basel) 2020 ; 11 (10): ä
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  • Analytical Sensitivity and Specificity of Two RT-qPCR Protocols for SARS-CoV-2 Detection Performed in an Automated Workflow #MMPMID33053675
  • Barra GB; Santa Rita TH; Mesquita PG; Jacomo RH; Nery LFA
  • Genes (Basel) 2020[Oct]; 11 (10): ä PMID33053675show ga
  • WHO declared the novel coronavirus (COVID-19) outbreak a global pandemic on 11 March 2020. The establishment of standardized RT-qPCR protocols for respiratory secretions testing, as well as sharing of specimens, data, and information became critical. Here, we investigate the analytical performance of two interim RT-qPCR protocols (Charite and Centers for Disease Control (CDC)) for the qualitative detection of SARS-CoV-2 executed in a fully automated platform. Analytical specificity, PCR amplification efficiency, analytical sensitivity (limit of detection), and cross-reactivity were evaluated using contrived samples. The on-going accuracy was evaluated by retrospective analysis of our test results database (real clinical samples). N1, E, and a modified version of RdRP assays presented adequate analytical specificity, amplification efficiency, and analytical sensitivity using contrived samples. The three assays were applied to all individuals who requested the SARS-CoV-2 molecular test assay in our laboratory and it was observed that N1 gave more positive results than E, and E gave more positive results than RdRP (modified). The RdRP and E were removed from the test and its final version, based on N1 assay only, was applied to 30,699 Brazilian individuals (from 19 February 2020 to 8 May 2020). The aggregated test results available in the database were also presented.
  • |Automation, Laboratory/methods/*standards[MESH]
  • |COVID-19 Testing[MESH]
  • |COVID-19 Vaccines[MESH]
  • |Clinical Laboratory Techniques/methods/*standards[MESH]
  • |Coronavirus Infections/diagnosis[MESH]
  • |Humans[MESH]
  • |Limit of Detection[MESH]
  • |Real-Time Polymerase Chain Reaction/methods/*standards[MESH]
  • |Reproducibility of Results[MESH]


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