This program of work is led by a clinical team at the Ifakara Health Institute Clinical Trial Facility at Kingani, Bagamoyo (IHI – CTF) which is conducting a series of studies to evaluate the potential impact of whole sporozoite malaria vaccine candidates to prevent malaria infection and thereby block transmission with the goal of achieving malaria elimination in Sub-Sahara Africa. The work is conducted in two countries; Tanzania and Equatorial Guinea. Studies and major contributions of the work to date include: