Nocardia is a genus of bacteria that are commonly found in soil and organic matter. These bacteria are known for their filamentous structure and can survive in harsh environments. While they are generally harmless to healthy individuals, they can cause infections in people with weakened immune systems. Infections caused by Nocardia can affect the lungs, skin, and brain, leading to conditions such as pneumonia or abscesses. Diagnosis typically involves laboratory tests, and treatment usually requires antibiotics. Early detection and appropriate medical care are essential for managing Nocardia infections effectively.