Joyce is an epidemiologist and she holds a Doctor of Philosophy degree in Tropical Infectious Diseases from the University of Nairobi, Kenya. She has a Master of Science degree in Epidemiology and Bachelor of Science Degree in Biochemistry, from Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya. Her research interest focuses on prevention and control of common infectious diseases in children and infants in low resource settings where access to treatment and affordable medical care is limited. For the last 15 years, Joyce has been involved in multi-site collaborative research projects on Respiratory Syncytial Virus (RSV). Currently she is an investigator to a multicountry Impact Trial of a Maternal RSV vaccine in Africa. Together with the Kenya Ministry of Health and other partners, Joyce leads a Maternal Immunization Readiness project to accelerate introduction of the Maternal RSV vaccine in Kenya. Joyce has over 30 publications and is a supervisor to postgraduate students