Evaluation of the Panbio™ COVID-19 Ag Rapid Test at an Emergency Room in a Hospital in São Paulo, Brazil

  1. Klinger Soares Faíco-Filho
  2. Francisco Estivallet Finamor Júnior
  3. Luiz Vinícius Leão Moreira
  4. Paulo Ricardo Gessolo Lins
  5. Alberto Fernando Oliveira Justo
  6. Nancy Bellei
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Abstract

Introduction

The performance characteristics of the Panbio™ COVID-19 Ag test were evaluated against RT-PCR – considered the gold-standard for the detection of SARS-CoV-2 – at an emergency room in São Paulo, Brazil. The study aimed to determine the sensitivity, specificity, positive percent agreement (PPA), and negative percent agreement (NPA) as compared to RT-PCR.

Methods

Specimens from 127 suspected patients were tested by both the Panbio™ COVID-19 Ag test and by RT-PCR.

Results

Evaluation of the agreement between the Panbio™ COVID-19 Ag test and RT-PCR indicated an overall sensitivity of 84% (95%CI, 75-93.8%) and an overall specificity of 98% (95%CI, 96-98.8%). The Panbio™ COVID-19 Ag test showed 97% sensitivity and 99% NPA for subjects with Ct values ≤ 25 (N=37).

Conclusion

The Panbio™ COVID-19 Ag test is suitable for use as a diagnostic test for the rapid screening of patients presenting COVID-19 symptoms, or those suspected with being infected, prior to being admitted to hospital.

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