Primary Immunodeficiency is a mysterious genetic condition where patients are born with holes or defects in their immune systems that make them vulnerable to many different diseases and infections. While there are more than 150 different primary immunodeficiencies the treatments have largely remained the same over the years. But today scientists and researchers are discovering new and more innovative ways to not only treat these conditions...but also new more convenient ways for patients to receive their treatments which can vastly improve their quality of life. In some cases, the only life-saving treatment is a stem cell transplant which replaces a patient’s entire immune system. We’ll see how these treatments are working in patients today and meet people who are living well with primary immunodeficiency.