"End of AIDS" requires ambitious testing, treatment, and adherence benchmarks, like UNAIDS' "90-90-90 by 2020." Mozambique's efforts to improve essential maternal/infant antiretroviral treatment (ART) exposes how austerity-related health system short-falls impede public HIV/AIDS service-delivery and hinder effective maternal ART and adherence. In therapeutic borderlands-where household impoverishment intersects with health-system impoverishment-HIV+ women and over-worked care-providers circumnavigate scarcity and stigma. Worrisome patterns of precarious use emerge-perinatal ART under-utilization, delayed initiation, intermittent adherence, and low retention. Ending HIV/AIDS requires ending austerity and reinvesting in a public sector health workforce to ensure universal health coverage as household and community safety nets.