Dr. Anne De Groot, a professor at Brown University, is on a mission to prevent the spread of HIV and tuberculosis (TB). Her start-up firm EpiVax uses computer technology to look through genetic material to create a vaccine. Her goal is not personal wealth, but to help fight disease. Each year, 1.9 million people die from TB and 2.3 million die from AIDS, according to the World Health Organization. Using a grant from the Rhode Island Center for Cellular Medicine, De Groot hopes to come up with a vaccine faster using computerized algorithms. EpiVax has contracts with companies that use her algorithms, and De Groot applies for grants continuously. EpiVax and the TB/HIV Research Lab at Brown, which De Groot heads, recently formed a nonprofit partnership to provide an AIDS vaccine at "little or no cost," and the researchers hope to have a vaccine in clinical tests within five years.