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[Developmental profile of HIV infection in children]
1Hôpital Necker, service d'immunologie et d'hématologie, Paris.
Insights
The natural history of Human Immunodeficiency Virus type 1 (HIV-1) infection in children is not fully understood. Some children experience rapid disease progression and severe symptoms within the first year, while others have a slower, more uncertain course.
Area of Science:
- Pediatric Infectious Diseases
- Immunology
- Virology
Context:
- The precise natural history of pediatric Human Immunodeficiency Virus type 1 (HIV-1) infection remains incompletely defined.
- Observed disease progression in children differs significantly from that in adults, suggesting unique pediatricpathogenesis.
Purpose:
- To elucidate the distinct clinical courses and long-term outcomes of HIV-1 infection in pediatric populations.
- To characterize the bimodal progression patterns observed in children with HIV-1.
Summary:
- HIV-1 infection in children presents a bimodal disease course.
- A significant subset (25-33%) develops severe immunodeficiency, infectious complications, and neurological issues within the first year, with a survival of 4-5 years.
- The remaining symptomatic children exhibit slower disease progression, potentially mirroring adult timelines, but their long-term prognosis is uncertain.
Impact:
- This research highlights critical differences in HIV-1 pathogenesis between pediatric and adult populations.
- Understanding these divergent disease trajectories is crucial for developing targeted therapeutic strategies and improving long-term management for children living with HIV-1.
Abstract:
The natural history of HIV-1 infection in children has not yet been determined precisely. Contrary to what is observed in adults, the disease seems to follow a bimodal course. One-quarter to one-third of infected children develop, before the end of their first year of life, a deep immunodeficiency which is responsible for severe infectious and neurological symptoms; survival does not exceed 4 to 5 years. In contrast, although the other children are symptomatic, their disease progresses much more slowly, perhaps as slowly as in adults, and their long-term outcome remains uncertain.