All of the following strategies are effective in preventing mother to child transmission of HIV, except-
## Core Concept
The prevention of mother-to-child transmission (PMTCT) of HIV involves a comprehensive approach including antiretroviral therapy (ART) for pregnant women, safe delivery practices, and post-exposure prophylaxis for the newborn. The goal is to reduce the risk of HIV transmission from mother to child during pregnancy, labor, and breastfeeding.
## Why the Correct Answer is Right
Option is the correct answer because elective cesarean delivery before the onset of labor and before the rupture of membranes (also known as a "clean" or "elective" cesarean section) has been shown to reduce the risk of mother-to-child transmission of HIV, particularly in the absence of effective antiretroviral therapy. However, with the widespread use of effective ART, the benefits of elective cesarean delivery in reducing MTCT have diminished, but it remains a strategy in certain contexts.
## Why Each Wrong Option is Incorrect
- **Option A:** Administering antiretroviral therapy to the mother during pregnancy is a cornerstone of PMTCT. ART significantly reduces the maternal viral load, thereby decreasing the risk of HIV transmission to the child.
- **Option B:** Avoiding breastfeeding or providing antiretroviral prophylaxis to the infant can prevent postnatal transmission of HIV from mother to child. This is a critical strategy in settings where safe alternatives to breast milk are readily available and culturally acceptable.
- **Option D:** Administering antiretroviral prophylaxis to the newborn is a key strategy in preventing MTCT of HIV. This approach helps to reduce the risk of HIV infection in the infant.
## Clinical Pearl / High-Yield Fact
A crucial point to remember is that the most effective strategy for preventing mother-to-child transmission of HIV involves a combination of interventions, including antiretroviral therapy for the mother, antiretroviral prophylaxis for the newborn, and safe infant feeding practices. The use of ART has significantly reduced the risk of MTCT to less than 5% in many parts of the world.
## Correct Answer: D.