We randomly assigned HIV-infected women at 14 or more weeks of gestation with CD4
counts of at least 350 cells per cubic millimeter to zidovudine and single-dose nevirapine
plus a 1-to-2-week postpartum “tail” of tenofovir and emtricitabine (zidovudine alone);
zidovudine, lamivudine, and lopinavir–ritonavir (zidovudine-based ART); or tenofovir,
emtricitabine, and lopinavir–ritonavir (tenofovir-based ART). The primary outcomes
were HIV transmission at 1 week of age in the infant and maternal and infant safety