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[Detection of dengue virus antigen in post-mortem tissues]
Jorge Rivera1, Marcela Neira2, Edgar Parra2
1Grupo de Morfología Celular, Dirección de Investigación en Salud Pública, Instituto Nacional de Salud, Bogotá, D.C, Colombia.
Biomedica : Revista Del Instituto Nacional De Salud
|December 16, 2014
Summary
Severe dengue can occur in infants during their first infection. This case report emphasizes studying primary dengue infections in children and comprehensive diagnostic approaches beyond liver tissue analysis.
Area of Science:
- Virology
- Immunology
- Public Health
Background:
- Dengue epidemiology is worsening globally, posing significant public health challenges due to transmission difficulties and lack of specific treatments or vaccines.
- Current research on dengue pathogenesis predominantly investigates T-cell responses in secondary infections, focusing on vascular permeability and bleeding mechanisms.
Observation:
- A case of severe dengue in an infant under 45 days old is presented.
- Diagnosis was confirmed post-mortem via reverse transcription polymerase chain reaction (RT-PCR) on tissue samples and immunohistochemistry detecting viral antigens in multiple organs.
Findings:
- Severe dengue occurred in an infant during a primary infection, challenging the focus on secondary infections.
- Viral antigens were detected systemically, indicating widespread organ involvement.
Implications:
- Highlights the critical need to study primary dengue infections, especially in pediatric populations, as they can lead to severe disease.
- Underscores the importance of utilizing comprehensive diagnostic methods, including immunohistochemistry on various tissues, for accurate dengue pathogenesis studies, rather than relying solely on liver tissue examination.

