World AIDS vaccine day Start › News < back 19 May 2023 May 19th marks World AIDS Vaccine Day, with the aim of this date to inform and raise awareness about the HIV virus. Since AIDS was discovered, and every year millions of people are diagnosed around the world, over the years much progress has been made in the treatment and prevention of the HIV virus. It is important to highlight that the study of vaccines against the HIV virus is complex, as the virus has high genetic variability. Although there is not yet a vaccine against the HIV virus, efforts to develop a safe and effective vaccine are the main focus. From clinical studies and experimental studies to exploring different approaches, from vaccines, immunotherapy and passive immunization. On this day, it is important to highlight the importance of preventing the HIV virus through the use of contraceptive methods.