Conducted by the Thailand Ministry of Public Health, a new vaccine study has shown "modest" benefits in preventing HIV. Said results show that we could have a "safe and effective" preventive vaccine at some point in the near future. According to CBS 5/AP, "The vaccine—a combination of two previously unsuccessful vaccines—cut the risk of becoming infected with HIV by more than 31 percent in the world's largest AIDS vaccine trial of more than 16,000 volunteers in Thailand, researchers announced Thursday in Bangkok."