Addressing vaccine hesitancy: the crucial role of healthcare providers.

To maintain successful vaccination programmes, it is of critical importance to identify providers who are vaccine-hesitant, to understand the causes of their hesitancies, and to develop tailored strategies to address this. Within the population, vaccine hesitancy in healthcare providers is highly context-specific and will vary among different vaccines, professions, and in time. There are gaps in understanding of the complex mix of factors leading to vaccine hesitancy among healthcare providers, but this is key to design of effective targeted interventions.