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Meet The Team

Meet Our Leadership Team

Your PharmaLink People

At the heart of PharmaLink is a dedicated global and regional leadership team bringing together expertise in pharmacy, digital health, and health systems strengthening. Guided by a shared vision of making quality healthcare accessible everywhere, our leaders work across regions to connect pharmacists, scale innovations, and build stronger primary care systems for communities worldwide.

Betty Abera, BPharm, MBA
Project Director,
Global 🌎

Betty is a Global health expert and pharmacist leading PharmaLink’s immunization delivery across Ethiopia, Nigeria, and Kenya.

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Alexandra Miller
Program Manager,
Global 🌎

Alexandra Miller is a global health leader driving multi-country programs, partnerships, and pharmacy-based immunization.

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Adebayo Adebisi, MD, MBA, MPH
Program Manager,
Nigeria 🇳🇬

Adebayo is an expert in project leadership and health system reform, focused on immunization and private sector collaboration.

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Belete Ayalneh, BPharm, MPH
Program Manager,
Ethiopia 🇪🇹

Belete is a public health pharmacist advancing pharmacy services through practice, policy, research, and academic leadership.

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Florence Wachira, MD
Program Manager,
Kenya 🇰🇪

Florence is a health expert bridging clinical care and public health to foster equity, education, and cross-sector collaboration.

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Mersha Alene, MPH
Program Officer,
Ethiopia 🇪🇹

Mersha improves public health systems expanding access to immunization and reproductive health.

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Temitope Adenuga
Senior Program Officer,
Nigeria 🇳🇬

Temitope is an immunization specialist focused on client-centered care through strategic engagement and supportive supervision.

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Partner with PharmaLink

Drive access, education, and innovation across Africa’s pharmacy network.

Meet Our Research, Monitoring, and Digital Health Teams

Leadership in Global Health Research and Innovation

The PharmaLink Research Team brings together seasoned global health researchers and advisors with expertise in epidemiology, implementation science, biostatistics, and market access research. Collectively, they have led innovative studies across dozens of countries, advancing evidence-based practices in self-care, immunization, sexual and reproductive health, and health systems strengthening.

Kristen Little, PhD
Senior Research Advisor,
Global 🌍

Kristen is a PhD-trained epidemiologist with 15+ years’ experience leading global health research and implementation science in 40+ countries.

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Eden Demise, MSc
Research Advisor,
Global 🌍

Eden is a global health researcher, an expert in implementation science across Africa & South Asia in immunization, self-care & SRH.

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Bekele Belayihun, PhD
Evidence & Learning Director,
Ethiopia 🇪🇹

Bekele is a public health researcher & data scientist with 16+ years’ in epidemiology and data modeling.

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Grace Ayo, MPH
Monitoring & Evaluation Manager,
Nigeria 🇳🇬

Public Health and M&E Specialist skilled in data analytics and visualization for evidence‑based health program improvement.

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Julius Njogu, MPH
Evidence & Learning Advisor,
Kenya 🇰🇪

Julius is a distinguished Epidemiologist (20+ Yrs) & health research veteran specializing in tropical medicine and public health.

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Judy Mwangi, MSc
Senior Monitoring Advisor,
Kenya 🇰🇪

Judy Mwangi, Senior Regional M&E Advisor at PSI, 18+ yrs strengthening M&E systems & digital data use across 15+ countries.

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Wycliffe Waweru, MPH
Head, Digital Health,
Kenya 🇰🇪

Digital health leader at PSI with extensive experience using technology to improve global health systems.

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Stay in the know with the latest knowledge and skills in pharmacy-based immunization delivery

Our newsletter delivers the latest evidence, innovative research findings, and expert analysis from our team’s work in epidemiology, self-care, immunization, and health systems strengthening directly to your inbox.

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Our Partners

Stronger Together: Building Pharmacy-Led Better Health Outcomes

PharmaLink is proud to collaborate with leading national and international organisations that share our vision for accessible, pharmacist-led healthcare across Africa. Together, we’re building stronger systems, expanding access, and advancing the role of pharmacy in public health.

Partner with PharmaLink
Takeda Pharmaceuticals logo
American Pharmacists Association (APhA) logo
Ministry of Health Ethiopia logo
Ethiopian Pharmaceutical Association logo
National Primary Health Care Development Agency (NPHCDA) logo
Association of Community Pharmacists of Nigeria (ACPN) logo
Pharmacy and Poisons Board — Ministry of Health — Republic of Kenya logo
The Pharmaceutical Society of Kenya (PSK) logo

Betty Abera, BPharm, MBA

Global Project Director, PharmaLink (PSI) | Registered Pharmacist | 20+ Yrs in Global Health & Vaccine Access | Social Business Expert

Betty Abera is a distinguished Global Health Specialist and Registered Pharmacist with over 20 years of experience improving global access to medicines and vaccines.

As the Global Project Director for PharmaLink at PSI, she leads the strategic expansion of pharmacy-based immunization delivery across Ethiopia, Nigeria, and Kenya, with a focus on policy advocacy and implementation frameworks. Betty’s previous work at PSI involved directing social business marketing and product innovation for over 20 countries in Africa, Asia, and Latin America.

Her diverse background includes a decade in direct patient care, operations management, and pharmaceutical marketing at GSK East Africa. She holds a BSc in Pharmacy and an MBA in International Business.

Alexandra Miller

Global Health Professional | Program Manager, PSI | Pharmacy-Based Immunization Delivery | BA, Bowdoin College

Alexandra Miller is a Global Health professional with experience managing multi-country programs, strengthening partnerships, and providing technical support across operations, finance, workforce capacity building, and digital ecosystem development.

She is a Program Manager at Population Services International (PSI) on the Pharmacy-Based Immunization Delivery project. In this role, she works closely with country teams, strategic partners, and technical experts to drive operational excellence, advance private-sector engagement, and implement innovative approaches to increase access to immunization services.

Previously, Alexandra contributed to multiple global health initiatives focused on program management, digital transformation, and strengthening country-level health systems. She has partnered with in-country stakeholders across Africa to expand service delivery, enhance organizational effectiveness, and build sustainable technical and operational capacity.

Based in Boston, Massachusetts, she holds a Bachelor’s degree with Honors in Neuroscience and Government and Legal Studies, with a concentration in International Relations, from Bowdoin College.

Adebayo Adebisi, MD

Global Health Epidemiologist | Registered Pharmacist | Oxford & Glasgow Scholar | Research Director & Health Equity Advocate

Adebayo is a distinguished Global Health Epidemiologist and Registered Pharmacist committed to advancing public health and research capacity in the Global South.

His exceptional academic background includes a current PhD in Epidemiology at the University of Glasgow (ESRC-funded) and an MSc in Global Health Science and Epidemiology from the University of Oxford (Commonwealth Shared Scholar).

With over 50 publications in international journals, his research focuses on social epidemiology, health inequalities, and strengthening health systems through evidence on topics like AMR and tobacco harm reduction. Mr. Adebisi has been widely recognized for his advocacy and research contributions, notably receiving the prestigious Diana Award.

Belete Ayalneh, BPharm, MPH

Senior Program Manager (PSI) | Clinical Pharmacist & PMP | 15+ Yrs in Immunization Delivery, Supply Chain & Policy Advocacy

Belete is a senior Clinical Pharmacist and certified Project Management Professional (PMP) with over 15 years of experience spanning pharmacy services, program management, and national policy advocacy.

He is Senior Program Manager for Pharmacy-Based Immunization Delivery at Population Services International (PSI)-Ethiopia, leading efforts to expand access to vaccination services.

He previously served as a Clinical Pharmacy Advisor for the USAID GHSC-PSM (Chemonics), specializing in medication safety monitoring and pharmacovigilance. His expertise is further backed by extensive experience as an academician, practitioner, and researcher of Clinical Pharmacy at Addis Ababa University.

Academically, he holds dual master’s degrees in Pharmacy Practice and Public Health, complemented by a MiniMasters in Global Supply Chain Management from Arizona State University.

Florence Wachira, MD

Program Director (Kenya) & MD | Global Health Leadership | Health Systems Strengthening | Clinical & Mental Health Practice

Dr. Florence Njenga Wachira is a highly accomplished Global Health Leader, Medical Doctor (MD, MSc), and Program Manager with 15+ years of experience in health systems strengthening and clinical delivery.

She currently drives strategy and execution as the Program Manager and Health Systems Accelerator at Population Services International (PSI). Prior to PSI, she served as a Technical Lead at the Elizabeth Glaser Pediatric AIDS Foundation (EGPAF), focusing on clinical research and policy.

Dr. Wachira’s leadership foundation includes advanced training in Global Health Leadership, Policy, and Gender/Intersectionality from the University of Toronto’s Dalla Lana School of Public Health, and an InterSCALE Fellowship at Aga Khan University, complementing her MBCHB (Clinical Psychology focus) from the University of Nairobi.

Mersha Alene, MPH

Program Officer, PharmaLink (PSI Ethiopia) | Public Health Professional | 13+ Yrs in Health Systems & Program Leadership | Immunization & SRH Expert

Mersha Alene is a seasoned Public Health Professional with over 13 years of experience strengthening health systems and leading high-impact programs across Ethiopia.

As Program Officer for PharmaLink at PSI Ethiopia, he drives the implementation of pharmacy-based immunization delivery and other public health initiatives, bridging policy, health systems, and community-level action. Mersha brings expertise across HIV/AIDS, sexual and reproductive health, immunization, cervical cancer prevention, and pharmacy-based public health interventions.

His diverse career spans government health institutions, international NGOs, and private-sector facilities, providing him with a well-rounded perspective on health service delivery and program management. Mersha holds a Master of Public Health (MPH) from Haramaya University.

Temitope Adenuga

Senior Program Officer & Immunization Specialist, PharmaLink (PSI Nigeria) | 5+ Yrs Public-Sector Strengthening Immunization | Service Quality Expert Advancing Community Engagement

Temitope Adenuga is a dedicated Immunization Program Specialist with over five years of experience leading public-sector vaccination initiatives and more than two years serving as a state-level consultant for NGOs.

As the Senior Program Officer for PharmaLink at PSI Nigeria, she supports the expansion of pharmacy-based immunization delivery through strategic planning, community engagement, and technical oversight in resource-limited settings. Temitope brings proven expertise in strengthening routine immunization systems, improving service quality, and driving operational performance.

Her professional background includes designing, implementing, and evaluating vaccination programs with a strong commitment to client-centered care and supportive supervision. Passionate about innovative, equitable healthcare solutions, Temitope is deeply aligned with PSI’s mission to make essential health services more accessible and impactful.

Dr. Kristen Little

PhD Epidemiologist | Senior Strategic & Technical Research Advisor (PSI) | Expert in Implementation Science & Market Access Research (Contraceptives, Vaccines, Diagnostics)

Dr. Kristen Little is a veteran PhD Epidemiologist and Senior Research Advisor at Population Services International (PSI), bringing over 15 years of experience in global public health research across more than 40 countries.

For over a decade at PSI, she has specialized in leading mixed-methods research, including implementation science and market access studies (consumer preference, willingness-to-pay). Dr. Little’s influential work spans critical public health areas, from contraceptive product innovations (Nexus Platform) to emerging self-care diagnostics (HPV self-collection, malaria self-tests) and vaccine journey mapping (Immunization at Scale Project).

Passionate about embedding evidence-based learning, she maintains a strong record of research utilization with more than 50 peer-reviewed publications. Dr. Little holds a PhD in Public Health from the Johns Hopkins Bloomberg School of Public Health.

Eden Demise

Research Advisor, PSI | Global Health Implementation Science | Expert in SRH, Immunization & Research Utilization (Africa & Asia)

Eden is a Research Advisor at Population Services International (PSI), where she is a key contributor to implementation science research across a diverse portfolio of health areas.

Her work focuses on generating evidence to improve the delivery of critical public health services, including pharmacy-based immunization, cervical cancer, self-care products, and sexual and reproductive health (SRH).

With field experience spanning multiple contexts in Sub-Saharan Africa and South Asia, Eden is proficient in the full research lifecycle. Her expertise covers research design, field implementation, rigorous data analysis, and effective stakeholder engagement, resulting in successful program learning and the production of peer-reviewed publications.

Eden holds a Master’s degree in Global Health from Georgetown University.

Dr. Bekele Belayihun

Director of Evidence & Learning (PSI) | PhD Epidemiologist & Data Scientist | Implementation Science, Cost-Effectiveness & SRH Initiatives

Dr. Bekele is a leading Public Health Researcher and Data Scientist with over 16 years of expertise in epidemiology, statistical modeling, and implementation science.

As Director of Evidence and Learning at Population Services International (PSI), he leads decision-science initiatives and drives M&E innovations across global programs.

Trained as a Biostatistician with a PhD in Health Studies, Dr. Bekele is recognized for his mastery of cost-effectiveness modeling and translating evidence into practical policy for projects including immunization, HPV, and SRH initiatives. He is a prolific author of over 70 scientific publications and a recipient of the 2022 Gold Medal for research excellence.

Grace Ayo, MPH

Monitoring & Evaluation Manager, PSI Nigeria | Public Health & Data Analytics Specialist | 7+ Yrs in Health Systems & Strategic Information Management

Grace (Oiza) Ayo‑Jatto is an accomplished Public Health Professional and Monitoring and Evaluation (M&E) Specialist with extensive experience in data analytics, visualization, and strategic information management within Nigeria’s health sector.

As Monitoring and Evaluation Manager at Population Services International (PSI) Nigeria, she leads efforts to strengthen data systems and enhance the use of timely, high‑quality analytics for program improvement and decision‑making. Grace also contributes to the Data.FI Project, where she applies her expertise in public health data analytics and visualization to support evidence‑based programming and system performance monitoring.

Her experience spans roles in epidemiology, research and surveys, health informatics, TPM (Third‑Party Monitoring), and program evaluation across organizations such as PHIS3, Impact Initiatives, and eHealth4everyone. A microbiologist by training, Grace holds a Master of Public Health (MPH) in Epidemiology from Ahmadu Bello University and a B.Sc. in Microbiology from the University of Ilorin.

Julius Njogu

Distinguished Scholar & Epidemiologist | Leading SRHR, GBV & Self-Care Research | 20+ Yrs Health Systems Strengthening in Africa

Julius Njogu is a distinguished Scholar, Epidemiologist, and health research veteran with over two decades of expertise spanning tropical medicine and public health across Kenya and the African region.

He currently leads the research and learning agenda for the Accelerate Project, which focuses on integrating Sexual and Reproductive Health and Rights (SRHR) and Gender-Based Violence (GBV) interventions across 13 underserved counties in Kenya. Concurrently, he is advancing evidence for pharmacy-based immunization approaches and pioneering research for self-care contraception solutions.

Through his extensive research portfolio, Mr. Njogu has contributed significantly to national and global health policy discourse. His scholarly articles focus specifically on high-impact areas such as Malaria, SRHR, and GBV. He holds a Bachelor’s degree in Nursing Sciences, a Master’s in Public Health (Epidemiology), and is currently earning a doctorate degree.

Judy Mwangi

Senior Regional Advisor (M&E), PSI | 18+ Yrs in M&E Systems Strengthening | Digital Data & Performance Monitoring Expert | DHIS2, ODK & Power BI Specialist

Judy Mwangi is a Senior Regional Advisor (M&E) at Population Services International (PSI) Nairobi, with over 18 years’ experience strengthening M&E systems across 15+ countries. She provides technical leadership in M&E planning, budgeting, data management, quality assurance, and data use for decision-making, leveraging digital tools including DHIS2, ODK, and Power BI.

Judy has been instrumental in designing digital data systems and promoting routine data review and learning with Ministries of Health, PSI country platforms, and implementing partners. Her expertise spans data quality assurance, performance monitoring, and strategic oversight, ensuring evidence-based decision-making.

Within the PBID Project, she oversees data management, data quality, and performance monitoring across Kenya, Nigeria, and Ethiopia to enhance service quality and health outcomes. She holds an MSc in Public Health Promotion from the London School of Hygiene and Tropical Medicine and a Postgraduate Diploma in Monitoring and Evaluation Studies from Stellenbosch University.

Wycliffe Waweru

Head of Digital Health, PSI | Digital Health Leader | 20+ Yrs in Global Health & Systems Strengthening | Expert in Health Information Systems, Data Analytics & Digital Strategy

Wycliffe Waweru is a seasoned Digital Health Leader with over 20 years of experience advancing technology-driven solutions to strengthen health systems and improve outcomes across low- and middle-income countries.

As Head of Digital Health at Population Services International (PSI), he leads the integration of technology and data analytics into global health programs, driving innovation, system performance, and data-informed decision-making. Wycliffe collaborates with governments, development partners, and private-sector organizations to design and scale sustainable, interoperable digital health solutions that enhance service delivery and program impact.

His expertise spans digital health strategy, health information systems, data analytics, and technology-enabled service delivery, positioning him as a leading voice in the digital transformation of health systems. Wycliffe holds a Master of Science in Public Health from the London School of Hygiene and Tropical Medicine.