^{Immunology and Oncology}

The immune system is the body’s natural defence system. It is a collection of organs, cells and special molecules that help protect you from infections, cancer and other diseases. Immuno-oncology therapies activate our immune system, making it able to recognize cancer cells and destroy them. Breast cancer is one of the major cancer types for which new immune-based cancer treatments are currently in development. Lung cancer surgery carries risks, including bleeding and infection. Clinical trials are studies of experimental lung cancer treatments. Adult central nervous system tumour is a disease in which abnormal cells form in the tissues of the brain and/or spinal cord. A tumour that starts in another part of the body and spreads to the brain is called a metastatic brain tumour.