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[Modes of contamination in children]
J Y Gillet1, A Bongain, D Abrar
1Service de gynécologie-obstétrique et de médecine de la reproduction du centre hospitalier universitaire de Nice, hôpital Saint-Roch.
La Revue Du Praticien
|January 11, 1990
Summary
Infants can contract HIV through blood, placenta, delivery, or breastfeeding, with transplacental transmission being most common. Approximately 30% of infants born to HIV-positive mothers acquire the virus, influenced by maternal health.
Area of Science:
- Virology
- Immunology
- Pediatrics
Context:
- Understanding HIV transmission routes in infants is crucial for prevention strategies.
- Global disparities in HIV testing and sterilization impact infant contamination risks.
Purpose:
- To describe the various routes of human immunodeficiency virus (HIV) transmission from mother to infant.
- To identify factors influencing vertical HIV transmission rates.
Summary:
- HIV transmission to infants occurs via blood perfusion (in settings with inadequate screening/sterilization), transplacental transfer (predominant route), delivery, and breastfeeding.
- Horizontal transmission is rare. Vertical transmission rates approximate 30%, potentially facilitated by advanced maternal HIV disease (CDC Stage III/IV) and low T4 lymphocyte counts.
- Further research on large cohorts is needed to fully elucidate transmission dynamics.
Impact:
- Informing public health policies for preventing mother-to-child HIV transmission (PMTCT).
- Guiding clinical management of HIV-positive pregnant individuals.
- Highlighting the need for improved global healthcare standards in HIV detection and safety protocols.