Data analysis
All the data (field notes, transcripts from FGDs and IDIs) were uploaded and analysed in NVivo, QSR International Version 12. A coding scheme was developed by the team during data collection and themes and sub themes were identified. Field notes and transcripts from the interviews were read several times and ideas pertinent to the pre-determined themes and sub themes were derived and assigned to a category, a ‘code’; patterns seen amongst the ideas were grouped together and a coding structure developed. The coding structure was reviewed and discussed during weekly team meetings to reach a consensus. Two coders coded the data independently and created additional codes inductively. Overall, the data presented here are from 9 weeks of participant observations, 9 FGDs and 9 key informant interviews.