The document discusses strategies for preventing mother-to-child transmission of HIV (PMTCT), including drug regimens for pregnant women and newborns. It provides details on regimens involving zidovudine alone or combined with other antiretrovirals. These regimens can reduce transmission rates to below 2% when combined with planned cesarean delivery before labor and avoidance of breastfeeding. Core WHO recommendations include voluntary testing and treatment for pregnant women as well as protecting patient confidentiality and rights.