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Updated: Jul 10, 2026
09:54
Chronic, Acute, and Reactivated HIV Infection in Humanized Immunodeficient Mouse Models
Published on: December 3, 2019
[Changes in vertically transmitted human immunodeficiency virus infection Chile].
Ana Chávez P1, Ana M Alvarez P, Elba Wu H
1Hospital Dr. Exequiel González Cortés, Santiago, Chile. anachavez@mi.cl
Summary
Preventing mother-to-child HIV transmission is crucial. Universal HIV testing during pregnancy ensures timely antiretroviral prophylaxis, significantly reducing infant infections.
Area of Science:
- Infectious Diseases
- Virology
- Public Health
Context:
- Vertical transmission of human immunodeficiency virus (HIV) poses a significant risk to infants.
- Strategies have evolved to reduce maternal viral load and infant exposure during delivery and breastfeeding.
Purpose:
- To outline the evolution of antiretroviral treatment protocols for preventing vertical HIV transmission.
- To highlight the effectiveness of interventions in reducing transmission rates.
- To advocate for universal HIV screening in pregnant women to ensure timely prophylaxis.
Summary:
- Antiretroviral treatment, including zidovudine and triple combination therapy (PACTG 076), has proven effective in reducing mother-to-child HIV transmission.
- Transmission rates decreased from an initial 9.5% to 2% between 1998 and 2005 in studied cohorts.
- Despite progress, undiagnosed maternal HIV status remains a risk for infant infection.
Impact:
- Successful implementation of antiretroviral therapy has dramatically lowered vertical HIV transmission rates.
- Universal HIV testing during pregnancy is essential for identifying at-risk mothers and initiating prophylaxis.
- Adherence to new prevention guidelines is key to further reducing pediatric HIV infections.
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