Trustee - Dr Sarah Joseph Dr Sarah Joseph PhD Clinical Immunologist Imperial College, Associate Professor at UCL Sarah is a clinical scientist with a background in tropical medicine. She has lived in Namibia, South Africa, Tanzania, Uganda and Kenya and has always been committed to the development of affordable accessible public health solutions. Sarah is particularly passionate about HIV prevention and has been involved in many clinical trials in the UK and abroad. She is also very committed to enabling and empowering the next generation of African scientists.