Adult-onset immunodeficiency syndrome is a rare condition characterized by the body producing autoantibodies that neutralize interferon-gamma, a protein essential for fighting infections. This disorder typically emerges in previously healthy adults between the ages of 30 and 50, primarily affecting those of Southeast Asian descent. Because the immune system is compromised, patients become highly susceptible to opportunistic pathogens like non-tuberculous mycobacteria and various viruses. While the exact cause remains uncertain, researchers believe a combination of genetic factors and environmental triggers may play a role. Management focuses on treating specific infections through antibiotics or using therapies l ...