Introduction
This report highlights findings from an implementation evaluation of Option B+, a Universal test and treat Strategy for HIV infected pregnant and lactating women to prevent mother-to-child transmission of HIV (PMTCT). This evaluation sought to understand Option B+ implementation in South Africa, three years after the policy was changed. We conducted a mixed-methods, multi-level programme evaluation to understand the views and experiences from policy-makers’, health care providers’ and users’ perspectives and to identify opportunities for programme strengthening.