Atty. Rochelle D. Mahinay-Sero, CESE, Regional Director of the Department of the Interior and Local Government Region XII (DILG Dose) actively participated as a panelist in the National Immunization Summit 2025 on November 30, 2025 at the Manila Hotel, Ermita Manila. She shared the stage as a panelist with Director Phlorita A. Ridao of NEDA XII. RD Sero and Ridao contributed to discussions on multi-stakeholder coalitions in immunization programs.