Table 3.

Co-created refined five-pronged intervention

Intervention Component: Refined through HCD Workshops	Description of Intervention Designed by CHWs and CAB members
Involvement of Religious Leaders (Maulanas)	Religious leaders joined the CAB for the final months of the project, where they were more deeply involved with sharing strategies to support vaccine uptake. Religious leaders also participated in advocacy videos which could be both disseminated via WhatsApp and displayed when CHWs spoke to parent and child caregivers in the community
Pamphlets of Vaccine Champions	A total of three pamphlets were created. Two pamphlets were designed to target routine vaccinations, as well as parent and child caregivers’ fear of side effects. The third pamphlet displayed a village elder, who was previously a CHW in Mewat, who had accepted COVID-19 vaccines. This pamphlet was to create demand for COVID-19 vaccines in the community
Videos of Vaccine Champions	Our team initially created two videos with two respected members of the CAB, a social worker and teacher. After feedback from the CAB, we created an additional video of a prominent religious leader (maulana). These advocates discussed the importance of vaccination, the need to complete immunization in a timely manner, and the negative long-term impacts of not vaccinating a child
Training and Exercises	We developed and led trainings on interpersonal communication and effective communication around COVID-19 vaccines, including on side effects. Our team also developed and led two exercises focused on reflective listening and journey mapping, which allowed CHWs to practice these new skills
Improved Coordination between CHWs and Supervisors	We coordinated with ANM workers, both in and out of the CAB, to develop a more established and consistent visit schedule for vaccine delivery in Mewat