Fig. 1

Conceptual map—context of workforce impact on Option B. PMTCT success was described by participants as depending on a broad variety of factors at multiple levels of influence, including at the health system, community, clinic, and interpersonal and individual levels. Workforce factors impacting PMTCT outcomes were present within each of these levels and can be categorized as fitting within three categories: workforce inputs, roles and responsibilities and workforce specific facilitators and barriers of task performance.*See Fig. 2 for more detail on workforce inputs, roles and responsibilities, and workforce-specific facilitators and barriers of task performance