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Childhood exanthems. Old and new
1Department of Dermatology and Pediatrics, University of California, San Francisco.
Abstract:
Exanthems are a common cause of rashes in children. Several recent developments have sparked a renewed interest in this group of diseases, including the identification of parvovirus B19 and human herpesvirus 6 as the causative agents of erythema infectiosum and roseola infantum. The resurgence of measles as a childhood exanthem has caused a re-examination of current immunization practices. The most common and clinically significant exanthems are discussed, with an emphasis on new findings, origins, clinical manifestations, differential diagnosis, and management.
Insights
Childhood rashes, or exanthems, are common. Recent discoveries link parvovirus B19 and human herpesvirus 6 to specific exanthems, while measles resurgence prompts review of immunization practices for common childhood rashes.
Area of Science:
- Pediatrics
- Infectious Diseases
- Dermatology
Background:
- Exanthems are frequent causes of pediatric rashes.
- Recent research has identified specific viral agents for erythema infectiosum (parvovirus B19) and roseola infantum (human herpesvirus 6).
- The resurgence of measles necessitates a review of vaccination strategies.
Purpose of the Study:
- To discuss common and significant childhood exanthems.
- To highlight new findings regarding their origins and clinical presentations.
- To provide guidance on differential diagnosis and management.
Main Methods:
- Literature review of recent developments in exanthem research.
- Synthesis of information on etiology, clinical features, and epidemiology.
- Emphasis on diagnostic criteria and therapeutic approaches.
Main Results:
- Parvovirus B19 identified as the cause of erythema infectiosum.
- Human herpesvirus 6 identified as the cause of roseola infantum.
- Measles resurgence impacting immunization policies.
Conclusions:
- Understanding the etiology and clinical manifestations of exanthems is crucial for accurate diagnosis.
- New findings necessitate updates in management strategies and public health interventions.
- Current immunization practices require re-evaluation in light of disease resurgence.