Anyway, about the < 5:
During pregnancy, HIV can pass through the placenta and infect the fetus.
During labor and delivery, the baby may be exposed to the virus from a woman’s blood and other fluids. When a woman goes into labor, the amniotic sac breaks (her water breaks). Once this occurs, the risk of transmitting HIV to the baby increases. Most babies who get HIV become infected around the time of delivery.
Breastfeeding also can transmit the virus to the baby.