| Health System Level and Type of Respondent | Data Collection Method | Number |
| National | ||
| EPI, MOH | Interview | 2 |
| Other, MOH | Interview | 8 |
| Civil society and international agencies | Interview | 5 |
| Academics/other domestic agencies | Interview | 4 |
| Regional | ||
| Regional head doctor | Interview | 3 |
| District | ||
| District head doctor and other staff involved in vaccination activities | Interview | 9 |
| Facility | ||
| Health facility staff | Questionnaire | 18 |
| Total | 49 |
Abbreviations: EPI, Expanded Programme on Immunization; MOH, Ministry of Health.