X-Linked Agammaglobulinemia (XLA)
X-Linked Agammaglobulinemia (XLA) is a rare immune system disorder that affects the production of antibodies. It is an inherited condition that is passed down from mother to son, and it is characterized by a deficiency in the production of antibodies. People with XLA are prone to recurrent infections, and if left untreated, it can lead to severe and life-threatening complications.