Key informant interviews

We developed a semi-structured interview guide, informed by a literature review [14] and senior ESU staff. MS recruited interviewees purposively based on their involvement in refugee health in Lebanon and knowledge of refugee and migrant policies, surveillance activities, and the ESU. MS contacted 24 potential interviewees in Arabic and English by email or phone, two of whom did not respond and two declined. Interviews took on average 40 minutes and were audio recorded after providing informed written consent. Two interviewees preferred answering questions through email and three preferred no audio-recording. MS conducted and transcribed interviews in English, except one conducted in Arabic and translated and transcribed into English. We ensured interviewee confidentiality by conducting interviews in times and locations of interviewees’ choosing. To ensure interviewee anonymity, no names or personal data were requested in audio recordings and MS assigned interviewees a numerical ID code for audio recordings, transcripts, and study outputs.