1. Pneumocystis Jirovecii Pneumonia in SCID

Pneumocystis jirovecii pneumonia (PJP) is a serious lung infection caused by a fungus called Pneumocystis jirovecii. In individuals with Severe Combined Immunodeficiency (SCID), the immune system is severely weakened, making them highly susceptible to infections. Without a functioning immune response, SCID patients can develop PJP, which can lead to significant breathing problems and complications. Symptoms often include a persistent cough, difficulty breathing, and fever. Early diagnosis and treatment are crucial for managing PJP, often requiring medications that target the fungus to help restore lung function and support the patient's recovery.