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Abstract
Hepatitis Delta is a disease caused by exposure to hepatitis B (HBV) and hepatitis D (HDV) viruses, usually with a more severe clinical outcome when compared to an HBV monoinfection. To date, the real prevalence of HDV infection is underestimated and detection methods are poorly available, especially in more endemic regions. Therefore, a one-step RT-qPCR method for quantification of HDV-RNA was developed. Biological samples were selected between 2017 and 2023 from patients at the Ambulatório Especializado em Hepatites Virais of the Centro de Pesquisa em Medicina Tropical de Rondônia and Serviço de Assistência Especializada and underwent the test developed by this study and a second quantitative RT-qPCR assay. The slope of the initial quantitative assay was − 3.321 with an efficiency of 100.04% and amplification factor equal to 2. Analysis of the repeatability data revealed a Limit of Quantification of 5 copies/reaction and Limit of Detection (95%) of 2.83 copies per reaction. In the diagnostic sensitivity tests, there was an accuracy of 97.37% when compared to the reference test. This assay proved to be highly efficient and reproducible, making it a valuable tool to monitor hepatitis Delta patients and assess the risk of disease progression, as well as the effectiveness of treatment.
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1 Fundação Oswaldo Cruz Rondônia FIOCRUZ/RO, Porto Velho, Brazil; Universidade Federal de Rondônia e Fundação Oswaldo Cruz Rondônia – UNIR/FIOCRUZ/RO, Programa de Pós-Graduação em Biologia Experimental, Porto Velho, Brazil (GRID:grid.440563.0) (ISNI:0000 0000 8804 8359)
2 Fundação Oswaldo Cruz Rondônia FIOCRUZ/RO, Porto Velho, Brazil (GRID:grid.440563.0); Instituto Oswaldo Cruz/IOC, FIOCRUZ, Programa de Pós-Graduação em Medicina Tropical, Rio de Janeiro, Brazil (GRID:grid.418068.3) (ISNI:0000 0001 0723 0931)
3 Centro de Infectologia Charles Merieux & Laboratório Rodolphe Merieux (FUNDHACRE), Rio Branco, Brazil (GRID:grid.418068.3); Universidade Federal da Bahia – UFBA, Salvador, Brazil (GRID:grid.8399.b) (ISNI:0000 0004 0372 8259)
4 Instituto Oswaldo Cruz/IOC, FIOCRUZ, Programa de Pós-Graduação em Medicina Tropical, Rio de Janeiro, Brazil (GRID:grid.418068.3) (ISNI:0000 0001 0723 0931); Centro de Infectologia Charles Merieux & Laboratório Rodolphe Merieux (FUNDHACRE), Rio Branco, Brazil (GRID:grid.418068.3)
5 Fundação Oswaldo Cruz Rondônia FIOCRUZ/RO, Porto Velho, Brazil (GRID:grid.418068.3); Universidade Federal de Rondônia e Fundação Oswaldo Cruz Rondônia – UNIR/FIOCRUZ/RO, Programa de Pós-Graduação em Biologia Experimental, Porto Velho, Brazil (GRID:grid.440563.0) (ISNI:0000 0000 8804 8359)
6 Fundação Oswaldo Cruz Rondônia FIOCRUZ/RO, Porto Velho, Brazil (GRID:grid.440563.0); Universidade Federal de Rondônia e Fundação Oswaldo Cruz Rondônia – UNIR/FIOCRUZ/RO, Programa de Pós-Graduação em Biologia Experimental, Porto Velho, Brazil (GRID:grid.440563.0) (ISNI:0000 0000 8804 8359)
7 Instituto Oswaldo Cruz/IOC, FIOCRUZ, Programa de Pós-Graduação em Medicina Tropical, Rio de Janeiro, Brazil (GRID:grid.418068.3) (ISNI:0000 0001 0723 0931); Centro de Pesquisa em Medicina Tropical – CEPEM, Porto Velho, Brazil (GRID:grid.418068.3)
8 Centro de Pesquisa em Medicina Tropical – CEPEM, Porto Velho, Brazil (GRID:grid.418068.3)
9 Instituto de Biologia Molecular do Paraná - IBMP, Curitiba, Brazil (GRID:grid.472986.6)
10 Fundação Oswaldo Cruz Rondônia FIOCRUZ/RO, Porto Velho, Brazil (GRID:grid.472986.6); Universidade Federal de Rondônia e Fundação Oswaldo Cruz Rondônia – UNIR/FIOCRUZ/RO, Programa de Pós-Graduação em Biologia Experimental, Porto Velho, Brazil (GRID:grid.440563.0) (ISNI:0000 0000 8804 8359)
11 Universidade Federal do Acre – UFAC, Rio Branco, Brazil (GRID:grid.412369.b) (ISNI:0000 0000 9887 315X)
12 Laboratório Central de Saúde Pública do Acre – LACEN/AC, Rio Branco, Brazil (GRID:grid.412369.b)
13 Instituto Oswaldo Cruz/IOC, FIOCRUZ, Programa de Pós-Graduação em Medicina Tropical, Rio de Janeiro, Brazil (GRID:grid.418068.3) (ISNI:0000 0001 0723 0931)
14 Universidade Federal de Rondônia - UNIR, Porto Velho, Brazil (GRID:grid.440563.0) (ISNI:0000 0000 8804 8359)
15 Centro de Infectologia Charles Merieux & Laboratório Rodolphe Merieux (FUNDHACRE), Rio Branco, Brazil (GRID:grid.440563.0)