Established in 2021, Health Across Humanity works at the intersection of technical expertise and human compassion. Our team is dedicated to advancing equity and improving the lived experiences of communities who are often left behind. We provide thought leadership and technical expertise to transform health and social welfare systems and services while working in collaboration with communities to support all people to live healthy and joyful lives.

  • Malia Duffy is a Family Nurse Practitioner with a Master of Science in Public Health (MSN-FNP, MSPH) and over 20 years of experience working domestically and in nearly every region of the world. Inspired by a hospital volunteer trip to Haiti at the age of fourteen, Malia has dedicated the entirety of her career to advancing health and psychosocial outcomes for populations who experience marginalization, including children and adolescents, women, families, immigrant/refugee populations, and people living in street and shelter settings. She has deep knowledge and experience spanning HIV, tubercolusis, mental health, sexual and reproductive health, sexual and gender-based violence, human rights, and maternal, newborn, and child health, among others. Malia is skilled at drawing upon data to design innovative global and national-level strategies and activities that translate research findings into real-world action, contributing to measurable improvements.

    Malia’s client experience spans across multi-lateral organizations, inter-agency working groups, national donors, and private foundations. She works in partnership with policymakers, ministries at all levels of government, local partners, and people with lived experience to advance real-world, evidence-based solutions that are deeply contextualized. With > 35 publications, Malia is a highly experienced technical writer, effectively synthesizing research and making it easily understood and actionable for diverse global audiences.

    Malia has a Master of Science in Public Health from Harvard University, Pediatric and Adult Nurse Practitioner degrees from Simmons College, a nursing degree from Johns Hopkins University, and degrees in Community Health Education and Spanish from Western Washington University. See her LinkedIn profile for a comprehensive description of her clients and professional experience, and her Google Scholar profile for her peer-reviewed publications.

  • Melissa Sharer is a social worker ( PhD, MPH, MSW) who has been working in public health, social welfare, and youth development since her time with the Peace Corps in Armenia in 1994. She has spent the past 25 years working in global settings, and is experienced in developing, delivering, and managing programs and research in development, relief, and post-conflict/transitional settings. Central areas of interest and experience focus on building strong public health and social services for children/youth inclusive of HIV/AIDS, maternal/child health, mental health, and issues related to sexual and gender-based violence. Dr. Sharer has expertise in designing/managing operational and participatory research, providing training/teaching and in implementing public health and social welfare programs in the United States, and in over 25 countries in Europe, Africa, and Asia. Having strong writing skills and a background in education, she has developed and delivered professional health, HIV, GBV, and youth/peer trainings tailored for audiences ranging from low-literacy populations to medical doctors.

    Dr. Sharer has authored several peer-review publications, case studies, and training manuals, is an academic editor for the PLOS One journal, and has made several oral presentations at international and national conferences.  Dr. Sharer's active research and practice agenda focuses on refugee/immigrant mental health; substance use prevention and treatment; foster and juvenile justice strategies; child protection; gun violence prevention; and community-based mental health.  

    Melissa has a PhD in Social Work from the School of Social Service at The Catholic University of America, a Masters in Social Work and a Masters in Public Health from University of North Carolina at Chapel Hill. See her LinkedIn profile and Google Scholar profile for a comprehensive description of her professional experience and skills.

  • Sandee Minovi brings more than 20 years of strategic leadership to the table, dedicated to operationalizing complex health and development goals on a global scale. As the 'operational heart' of large-scale initiatives, she ensures that every project—no matter how geographically dispersed—is set up for success from the start.

    Throughout her career, Sandee has managed multi-million-dollar portfolios around the world, but her drive for this work is deeply personal. Her dedication to marginalized communities was first sparked while working with street children in Guadalajara, Mexico, and was later galvanized by her own experience surviving a life-threatening pregnancy complication — a moment that underscored the vital importance of resilient, accessible health systems. Whether she is navigating the financial nuances of a major grant or mentoring a global team across 20+ countries, Sandee’s approach is rooted in partnership and a deep commitment to health equity. She has spent decades building trusted relationships with partners and funders, always with the goal of making operational processes feel seamless so that technical experts can focus on what they do best.

    Sandee holds an MA in International Development Studies from George Washington University and is always looking for modern ways to work smarter, recently earning her PMI certification in Generative AI for project management. When she isn't streamlining global operations, she is a dedicated advocate for inclusive leadership and a firm believer that the best results come from a collaborative, high-trust team environment. See her LinkedIn profile for a comprehensive description of her professional experience and skills.

Collaborators

Our network includes experts with deep technical skills and broad experience across geographic regions to design impactful global health programs and social welfare tools. We operate through a collaborative model rooted in efficiency and mutual trust to expand the reach of public health worldwide.

  • Mwansa Charity Njelesani is an accomplished public health leader with over 19 years of experience in HIV prevention, sexual and reproductive health, and strategic program implementation across sub-Saharan Africa. Recognized by UNAIDS and UNDP as a global thought leader in HIV prevention, she has played a pivotal role in introducing Oral Pre-Exposure Prophylaxis (PrEP) and long-acting Injectable PrEP (Cabotegravir) in Zambia. As Country Director for Tiko Zambia, she leads program execution, stakeholder engagement, and health innovations, ensuring evidence-based interventions that drive impact. She has also supported national COVID-19 response efforts, including risk communication and vaccine rollout strategies.

    Mwansa has held senior roles with UNAIDS, UNFPA, UNESCO, and John Snow Inc., providing expertise in policy development, strategic partnerships, and behavioural change interventions. She is a sought-after consultant in global health, leveraging human-centred design and behavioural science to enhance service delivery and public health outcomes. With a Master’s in International Affairs from Carleton University, she continues to influence policy and program design at national and international levels.

  • Walas is a passionate international development project management professional with >20 years experience designing, planning, and managing projects in complex and sometimes volatile environments. Areas of expertise include democracy and governance, civil society and institutional capacity strengthening, HIV, education and public-private partnership. Based in Pretoria, South Africa, Walas works with FHI 360 as a Portfolio Director, Program Management Unit overseeing a complex portfolio of projects in East and Southern Africa. Before FHI 360, he served as Chief of Party on a USAID and NBA-funded youth empowerment project in Senegal. He also supported democratic processes in various African countries, through political party strengthening and civic engagement work during his time with the US-based National Democratic Institute in Washington, DC. He studied peacebuilding and humanitarian actions at the University of Abidjan, Cote D’Ivoire and received his master’s in public policy from the American University, Washington DC. Past guest lecturer experiences include stints at the University of Abidjan, (Abidjan); University Cheikh Anta Diop (Dakar); University of Pretoria (Pretoria); Maryville College, (Tennessee); and MIT, (Boston).

  • Clara Haruzivishe is an Associate Professor of Nursing and Midwifery at the Faculty of Medicine and Health Sciences University of Zimbabwe. Her research focus is on maternal and child health and education; specifically, interprofessional education. She has a broad background in midwifery and education. She is an expert panelist in the HRSA-funded grant which was awarded to UCSF and AFREhealth. Dr. Haruzivishe has been a Principal Investigator for eight studies including: 1) An evaluation of innovative Art distribution in Zimbabwe; 2) Factors associated with maternal morbidity and mortality in Mashonaland East. 3) Determinants of periodontal disease in pregnancy, 4) Collaborative HIV Interprofessional Partnership (CHIP 1), 5) Collaborative HIV Interprofessional Partnership (CHIP 2), 6) Collaborative HIV Interprofessional Partnership (CHIP 3), 7) Programme for research on vaccine effectiveness (PROVE), and 8) UNICEF Children on the move study. She is also currently a co-investigator in a five-year National Institute of Health University of Zimbabwe-George Washington University ethics grant to implement a Master in Ethics degree within the faculty of medicine and health sciences, University of Zimbabwe.Description text goes here

  • Kathleen O'Donnell Burrows (MSW, MPP, LICSW) has over fifteen years experience working in mental health, public policy, and international development, Kathleen's expertise lies in trauma-informed care, program management, and human rights advocacy. She has led or overseen mental health activities for trauma and torture survivors in the United States and internationally from both a project manager and donor perspective, ensuring the integrity and effectiveness of mental health initiatives, promoting effective and meaningful community engagement, and requiring feedback loops with participants to guide activity adaptation. She has experience providing strategic direction and technical assistance for mental health programming worldwide through her experience with USAID as a Senior Mental Health Program Advisor (Institutional Support Contractor position), including providing oversight and fiscal management of activities funded through the $12 million Victims of Torture Congressional earmark fund. As a mental health clinical leader she has experience providing technical guidance and oversight during activity co-creation/design phases and during activity implementation through providing input on program work plans, monitoring and evaluation plans, and reports. She holds a Master's in Social Work and a Master's in Public Policy from the University of Minnesota. Kathleen is a Licensed Independent Clinical Social Worker (LICSW).

  • Ms. Rashmi has over 23 years of experience in domestic and international public health, community-led interventions, and multi-stakeholder collaboration including public, private, and civil society sectors. She provides technical, programmatic, and research support to numerous UN agencies, international organizations, national bodies, and governments across multiple countries. She designs and leads interventions for HIV, TB, sexual and reproductive health including adolescent health, and gender-based violence and works closely with national governments to strengthen capacity for evidence-based strategic planning and management, policy development, and capacity assessments. She promotes multi-sectoral approaches to achieve sustainable outcomes using minimal resources. Ms. Rashmi developed the first HIV integration framework in public health for Cambodia. She holds Master's in Sociology, Human Rights, Chemistry, and an MBA in Healthcare Services.

  • Jesse is a global health leader and researcher with two decades of experience in sexual and reproductive health. She specializes in sexual, reproductive and maternal health program research, design, development and execution, as well as resource mobilization. She has an extensive leadership track record leading multi-cultural teams that design and execute successful programs in extremely challenging settings. She is currently an American Heart Association Postdoctoral Fellow at the University of Alabama at Birmingham working on aDescription text goes here

  • With >40 years experience, Vuyelwa is a a dynamic and passionate leader in health and humanitarian management. A graduate from Adelphi University and Arnold and Marie Schwartz School of Sciences N.Y. USA, she is currently the Executive Director for The Zimbabwe Association of Church Related Hospitals (ZACH). She previously worked in the Ministry of Health and Child Welfare, and in the Ministry of Local Government and National Housing. Vuyelwa specializes in the management, planning, appraisal and reform of the health sector, including systems analysis, change management, institutional strengthening and project management. As a Certified Management Consultant and Master Couch, she is the co-founder and past president of the Zimbabwe National Institute of Consulting (ZNIC) and the first female certified management consultant in Zimbabwe.

  • Maura Reap (MA, MPH) is a global health and mental health specialist with over 25 years of experience spanning clinical practice, international development, and humanitarian response. She has worked across Africa, Asia, Latin America, Eastern Europe, and the Middle East with governments, UN agencies (including WHO and UNFPA), USAID, INGOs, and community organizations to strengthen mental health systems through strategy development, capacity building, program design and management, and coordination. Her work blends evidence-based practice with culturally grounded, community-led approaches and participatory research, with a focus on ethical, creative, and contextually resonant solutions. Maura has supported research and evaluation in diverse settings, including with Indigenous and displaced communities. Her early Peace Corps and Peace Corps Response service was a formative influence—shaping her lifelong commitment to equity, mutual learning, and partnership with communities. Most recently, she served as Senior Mental Health Advisor in USAID’s Bureau for Global Health, where she led development of the Bureau’s first mental health theory of change and strategic plan. She holds master’s degrees in Clinical Psychology and Global Health, and an Advanced Diploma in Art Therapy.