Several programs have been proposed to improve incentives for research on vaccines for malaria, tuberculosis, and HIV, and to help increase accessibility of vaccines once they are developed. For these programs to spur research, potential vaccine developers must believe that the sponsor will not...

Malaria, tuberculosis, and the strains of HIV common in Africa kill approximately 5 million people each year. Yet research on vaccines for these diseases remains minimal largely because potential vaccine developers fear that they would not be able to sell enough vaccine at a sufficient price to...