Fig. 5From: Implementation fidelity to HIV assisted partner services (aPS) during scale-up in western Kenya: a convergent mixed methods studyModerators influencing implementation fidelity to aPS. Positive and negative provider responses to aPS had an impact on perceived complexity due to interactions between internal actors (clients and providers). Facilitation strategies, contributed by the wider HTS organizational system, also affected the perceived complexity of aPSBack to article page