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Viral exanthems in the tropics
Sueli Coelho da Silva Carneiro1, Tania Cestari, Samuel H Allen
1Sector of Dermatology, School of Medicine and HUCFF-UFRJ, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil. sueli@hucff.ufrj.br
Viral exanthems in tropical regions pose risks, especially to vulnerable populations. This review discusses dangerous viral causes and their implications for children and pregnant women.
Area of Science:
- Tropical medicine
- Pediatrics
- Virology
Background:
- Viral exanthems are frequent in tropical climates, primarily impacting pediatric populations.
- While often benign, some viral exanthems present significant health risks.
- Certain groups, including pregnant women and immunocompromised infants, face heightened risks of severe outcomes.
Purpose of the Study:
- To review dangerous viral exanthems prevalent in tropical regions.
- To highlight specific viruses and conditions associated with severe outcomes.
- To inform healthcare providers about risks and relevant pathogens.
Main Methods:
- Literature review of viral exanthems in tropical regions.
- Identification of key viruses and associated clinical presentations.
- Discussion of risk factors and vulnerable populations.
Main Results:
- Parvovirus B19, dengue, yellow fever, West Nile virus, Marburg virus, Ebola virus, and human herpesviruses are discussed.
- Measles, rubella, enteroviruses, Lassa fever, and South American hemorrhagic fevers are also covered.
- Asymmetric periflexural exanthema of childhood is noted as a specific condition.
Conclusions:
- Prompt recognition and management of viral exanthems are crucial in tropical settings.
- Understanding the diverse range of viral causes is essential for effective public health strategies.
- Targeted interventions are needed to protect high-risk individuals from severe complications.
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