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10.1038/s41598-021-81245-0

http://scihub22266oqcxt.onion/10.1038/s41598-021-81245-0
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33500453!7838253!33500453
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suck abstract from ncbi


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pmid33500453      Sci+Rep 2021 ; 11 (1): 2224
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  • A new SYBR Green real-time PCR to detect SARS-CoV-2 #MMPMID33500453
  • Marinowic DR; Zanirati G; Rodrigues FVF; Grahl MVC; Alcara AM; Machado DC; Da Costa JC
  • Sci Rep 2021[Jan]; 11 (1): 2224 PMID33500453show ga
  • Phylogenetic analysis has demonstrated that the etiologic agent of the 2020 pandemic outbreak is a betacoronavirus named SARS-CoV-2. For public health interventions, a diagnostic test with high sensitivity and specificity is required. The gold standard protocol for diagnosis by the Word Health Organization (WHO) is RT-PCR. To detect low viral loads and perform large-scale screening, a low-cost diagnostic test is necessary. Here, we developed a cost-effective test capable of detecting SARS-CoV-2. We validated an auxiliary protocol for molecular diagnosis with the SYBR Green RT-PCR methodology to successfully screen negative cases of SARS-CoV-2. Our results revealed a set of primers with high specificity and no homology with other viruses from the Coronovideae family or human respiratory tract pathogenic viruses, presenting with complementarity only for rhinoviruses/enteroviruses and Legionella spp. Optimization of the annealing temperature and polymerization time led to a high specificity in the PCR products. We have developed a more affordable and swift methodology for negative SARS-CoV-2 screening. This methodology can be applied on a large scale to soften panic and economic burden through guidance for isolation strategies.
  • |*Organic Chemicals[MESH]
  • |*SARS-CoV-2[MESH]
  • |Benzothiazoles[MESH]
  • |COVID-19 Nucleic Acid Testing/*methods[MESH]
  • |COVID-19/*diagnosis[MESH]
  • |DNA, Single-Stranded[MESH]
  • |Diamines[MESH]
  • |Enterovirus[MESH]
  • |Genome, Viral[MESH]
  • |Humans[MESH]
  • |Phylogeny[MESH]
  • |Polymerase Chain Reaction[MESH]
  • |Quinolines[MESH]
  • |Real-Time Polymerase Chain Reaction/*methods[MESH]
  • |Rhinovirus[MESH]
  • |Sensitivity and Specificity[MESH]
  • |Temperature[MESH]


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