Vaccines blocking the invasion of malaria sporozoites failed so far, after 30 years of efforts, millions spent, and disastrous human clinical trials. The efforts and the millions are now focused on vaccines blocking transmission by gametocytes. The results are not yet encouraging but the updated Malaria Vaccine Technology Roadmap foresees that there will be a TBV vaccine available in 2030. The update was necessary as the program launched by WHO in 2000 ( TDR/RBM/MAL/VAC/2000.1) has not yet progressed very far.
Ogobara K. Doumbo, Karamoko...