World Inflammatory Bowel Disease (IBD) Day... May 19, 2022 World IBD Day takes place on May 19 each year to unite people worldwide in the fight against Crohn's disease and ulcerative colitis.
World AIDS Vaccine Day... May 18, 2022 World AIDS Vaccine Day, also known as HIV Vaccine Awareness Day, is observed annually on May 18. HIV vaccine advocates mark the day by promoting the continued urgent need for a vaccine to prevent HIV infection and AIDS.