(+254) 727688550 or 0736002609

Dr. Mark Ayallo

Dr. Ayallo has over two decades in leadership of programs and research in sexual and reproductive health (SRH) and STI prevention. He particularly emphasized human-centered approaches in addressing unplanned pregnancies and HIV. He has served as a consultant and health advisor, contributing to strengthening health systems in Kenya across various domains, including drug supply, vaccine procurement, policy development, NGO funding management and inter-agency coordination. He is also engaged in research on family planning and child-centric HIV/AIDS prevention strategies in multiple African countries. One of his research outcomes and a subsequent community-based condom distribution assessment unveiled that misconceptions, rather than access, hindered condom usage.

In 2004, I conducted a study, funded by the German Technical Cooperation, revealing the power of rebranding and social marketing in boosting condom demand. This research led to the adoption of the “Sure Condom” as a national product in Kenya. Furthermore, He conducted research on essential drug management at the community level, which informed the establishment of community pharmacy initiatives and the development of essential drug standards still utilized by the Kenyan Ministry of Health (MoH). I also played a pivotal role in capacity building for health workers in Trans Nzoia district, contributing to the creation of national guidelines for managing opportunistic infections in HIV in Kenya. My focus has since encompassed a wide range of areas, including strategic planning, team leadership, system development, clinical quality assurance, collaboration with partners, and engagement with government ministries. In recent years, I have been actively involved in strategic planning for organizations and various women’s health studies, making valuable contributions to improving healthcare practices and policies. I have also played crucial roles in clinical trials for COVID-19 treatment and tubal ligation task-sharing with mid-level providers in Kenya, combining medical expertise with effective research management.


  • Master in Public Health (MPH) – CDC, SRH, HSM, Health Research & Epidemiology.
  • Bachelor of Medicine, Bachelor of Surgery (MB,ChB)

Clinical Trials Participated/ study Protocols Executed

  • Solidarity Trial Vaccines, An International Randomized Trial of Candidate Vaccines Against COVID-19.
  • Adaptive Platform Treatment Trial for Outpatients with COVID-19 (Adapt Out COVID).
  • Data-informed Stepped Care (DiSC) to Improve Adolescent HIV Outcomes
  • Secondary distribution of HIV self-tests by female sex workers: an innovative strategy for promoting male partner testing and reducing HIV risk
  • IPrEP: A Combination Strategy for HIV Prevention among Young Female Sex Workers in Kisumu, Kenya
  • Task-sharing tubal Ligation to midlevel providers: Efficacy, Safety and Acceptability of registered clinical officers (RCOs) in providing tubal ligation in Kenya.
  • Photovoice for Elicitation of Multi-Level Factors that Influence PrEP Adherence and Persistence Among Young Women in Kenya
  • Targeted interventions to address the multi-level effects of gender-based violence on PrEP uptake and adherence among adolescent girls and young women in Siaya County, Kenya
  • High-yield HIV testing, facilitated linkage to care, and prevention for female youth in Kenya