A Medical doctor specialized in the management and control of tropical and infectious diseases. I have been Involved in various health research activities of public health importance. These include HIV/AIDS, Malaria and other neglected diseases of the poor. I have spearheaded the completion of research work on the relationship between climate change, population health and vector borne diseases including malaria and rift valley fever. I have served in various capacities either as a principal investigator, project director or programme coordinator as well as committee/board member of various research projects and programmes. Principal Investigator in the WHO/TDR/IDRC multi-country project on population health vulnerabilities and resilience to climate sensitive vector borne diseases in Africa as well as Coordinator of the JOOUST component of the CDC funded University HIV Fellowship Training Programme.

Have also been involved in the scale-up programmes for antiretroviral therapy (ART) in health facilities within Nairobi County. I served as the founder and pioneer Director of the University of Nairobi’s Institute of Tropical and Infectious Disease (UNITID) for 9 years where I was instrumental in establishing the Institute and setting up of the infrastructure for graduate degree training in health research and fellowship programs as well as the bio-containment advanced Level 3 Laboratories.