Serological evidence of leptospirosis in patients with a clinical suspicion of dengue in the State of Ceará, Brazil

Laiane Fernanda de Melo Bezerra, Raissa Matos Fontes, Almira Maria Monteiro Gomes, Dyana Alves da Silva, Jeová Keny Baima Colares, Danielle Malta Lima, .

Keywords: Leptospirosis, dengue, differential diagnosis, reverse transcriptase polymerase chain reaction, enzyme-linked immunosorbent assay.

Abstract

Introduction: Dengue and leptospirosis are two febrile illnesses of great clinical and epidemiological importance in Brazil. Their significant degree of symptomatic similarity makes clinical diagnosis difficult.
Objective: To diagnose leptospirosis differentially in patients with clinically suspected dengue.
Materials and methods: In this study, 86 patients with clinically suspected dengue underwent virological and serological diagnostic evaluations for dengue (reverse transcriptase polymerase chain reaction, NS1 immunochromatographic test, and NS1 enzyme-linked immunosorbent assay, ELISA), as well as tests to detect immunoglobulin M (IgM; IgM/IgG Rapid Test and IgM ELISA). The same patients were subsequently evaluated for leptospirosis using Rapid Test IgG/IgM (Bioeasy®) and Leptospira IgM ELISA (PanBio®).
Results: Of the 86 patients, 48 (55.8%) had positive results for dengue in at least one of the tests and five (7.35%) showed positive reactions for leptospirosis.
Conclusion: During dengue epidemics, this disease may be misdiagnosed as other infections, including leptospirosis, when diagnosis is based on nonspecific clinical and laboratory criteria alone.

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  • Laiane Fernanda de Melo Bezerra Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará (UFC), Fortaleza, Brasil

    Department of Pathology and Legal Medicine, Fortaleza, CE.

  • Raissa Matos Fontes Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará (UFC), Fortaleza, Brasil
    Department of Pathology and Legal Medicine, Fortaleza, CE.
  • Almira Maria Monteiro Gomes Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará (UFC), Fortaleza, Brasil Hospital Distrital de Maternidade Nossa Senhora da Conceição, Fortaleza, Brasil
  • Dyana Alves da Silva Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará (UFC), Fortaleza, Brasil

    Department of Pathology and Legal Medicine, Fortaleza, CE.

  • Jeová Keny Baima Colares Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará (UFC), Fortaleza, Brasil Hospital São José de Doenças Infecciosas, Fortaleza, Brasil Universidade de Fortaleza, Fortaleza, Brasil
    Mestrado em Ciências Médicas
  • Danielle Malta Lima Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará (UFC), Fortaleza, Brasil Universidade de Fortaleza, Fortaleza, Brasil
    Mestrado em Ciências Médicas
How to Cite
1.
Bezerra LF de M, Fontes RM, Gomes AMM, da Silva DA, Colares JKB, Lima DM. Serological evidence of leptospirosis in patients with a clinical suspicion of dengue in the State of Ceará, Brazil. biomedica [Internet]. 2015 Dec. 1 [cited 2024 May 17];35(4):557-62. Available from: https://revistabiomedica.org/index.php/biomedica/article/view/2504

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Published
2015-12-01
Section
Short communication

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