Bodhi undertook both a baseline and endline evaluation of the Mwanzo Mwema Programme, a four-year initiative by Girl Effect (GE) in partnership with GAVI, running from 2022 to 2026 in Tanzania and Ethiopia. The programme aimed to increase demand for the Human Papillomavirus (HPV) vaccine among 9-14-year-old girls and for routine immunisation (RI) among caregivers aged 15-29, including pregnant women, focusing on hard-to-reach girls and young mothers. The evaluation assessed the intent and uptake of HPV and RI vaccines, collected baseline indicator performance data, responded to GE's learning questions regarding attitudes, practices, and programme efficiency, and provided recommendations for future implementation. The evaluation, conducted between May 2023 and February 2024 in the Katavi, Tabora, and Lindi regions. For the HPV intervention the study took two approaches, the first being an individual cohort study. Here, a single cohort of 629 participants aged 11 to 12 years old were interviewed at baseline. The second approach involved a cross-sectional household study where 617 randomly selected girls aged 13 to 14 years, as well as 761 primary caregivers of 9 to 10 year old girls, were interviewed. For the RI intervention respondents the evaluators constructed a cohort of 1,330 caregivers aged 15 to 29 years and pregnant women, who were interviewed during the baseline evaluation. Overall, the study employed a mixed-methods methodological approach, utilising individual cohort studies and cross-sectional household studies for quantitative data, complemented by qualitative data from key informant interviews and focus group discussions. The evaluation employed a gender-sensitive and child-rights-based approach.