pre-exposure prophylaxis, PrEP, pregnancy, postpartum, lactation, breastfeeding, South Africa, PMTCT, HIV incidence, HIV prevention, vertical HIV transmission, women, Africa
pregnant, PrEP, pre-exposure prophylaxis, adherence, postpartum, breastfeeding, South Africa
pre-exposure prophylaxis, pregnant, breastfeeding, South Africa, persistence, adherence