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Human immunodeficiency virus type 2 infection in children
A Faye1, M Burgard, H Crosnier
1Département de Pédiatrie et Laboratoire de Virologie, Hôpital Necker-Enfants Malades, Paris, France.
Insights
Human immunodeficiency virus type 2 (HIV-2) infection in children is uncommon but can be transmitted from mother to child. Diagnosis is reliable after 18 months, though early detection methods are less sensitive than for HIV-1.
Area of Science:
- Pediatrics
- Infectious Diseases
- Virology
Background:
- Human immunodeficiency virus type 2 (HIV-2) infection is a rare condition in pediatric populations.
- Transmission routes include transfusion and maternofetal transmission, particularly if maternal infection occurs during pregnancy.
Purpose of the Study:
- To summarize the characteristics of HIV-2 infection in children.
- To discuss diagnostic challenges and disease progression compared to HIV-1.
Main Methods:
- Review of existing literature on pediatric HIV-2 cases.
- Comparison of diagnostic sensitivities (serologic tests, viral culture, PCR DNA amplification) for HIV-1 and HIV-2.
- Analysis of disease progression patterns in children with HIV-2.
Main Results:
- Serologic diagnosis of HIV-2 in children is straightforward after 18 months of age.
- Perinatal viral isolation via culture or PCR DNA amplification shows lower sensitivity for HIV-2 compared to HIV-1.
- HIV-2 disease progression in children is significantly slower than HIV-1, yet severe immunodeficiency remains a possibility.
Conclusions:
- While rare, pediatric HIV-2 requires careful consideration of transmission and diagnostic timing.
- Diagnostic strategies for perinatal HIV-2 may need refinement due to lower viral detection sensitivity.
- Long-term monitoring is essential as slow disease progression can still lead to severe immunodeficiency.
Abstract:
Human immunodeficiency virus type 2 infection is rare in children. This virus can be acquired through transfusion and also by the maternofetal route, especially when the mother becomes infected during pregnancy. Diagnosis based on specific serologic tests is simple after the age of 18 months. In the perinatal period, however, viral isolation by culture or polymerase chain reaction DNA amplification or both appears to be less sensitive than in the case of human immunodeficiency virus type 1. Disease progression is far slower than with human immunodeficiency virus type 1, but severe immunodeficiency can occur.