From Bystanders to Participants: Encouraging TB and HIV Screening Among Prison Staff in Mozambique

ICPA 2025 Presentation by Ivan Calder (PID033)

Author

Ivan Calder

Chief Executive Officer, Health through Walls, United States

Ivan Calder is the Chief Executive Officer of Health through Walls, a nonprofit organization committed to improving health conditions in correctional facilities, and the President and Founder of Justice Health Matters, a consultancy dedicated to advancing health equity and systemic reform within criminal justice settings. With more than 20 years of experience at the intersection of public health and criminal justice, Ivan is a recognized leader in prison health systems, infectious disease control, and human rights advocacy. Under his leadership, Health through Walls has expanded across multiple countries, implementing evidence-based interventions, capacity-building initiatives, and disease surveillance programs that have significantly improved health outcomes for incarcerated populations.

Through Justice Health Matters Consultancy, Ivan provides strategic guidance to governments, NGOs, and international agencies, helping them address the complex challenges of healthcare delivery in justice systems. His approach centers on sustainable solutions, multisector collaboration, and the integration of public health standards into correctional policy and practice. Ivan is a passionate advocate for health justice, frequently contributing to global forums on access to care, incarceration, and human rights. His career reflects a deep commitment to transforming systems to ensure that marginalized and vulnerable populations receive equitable, dignified care.

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