Cancer is not a singular disease. Rather, cancer describes a class of diseases in which abnormal cells can grow without control and invade other parts of the body. The result is a growth called a tumor. There are over 100 types of cancer and each case has unique characteristics. Accordingly, the idea of a single cure for cancer is not aligned with the reality of treating this class of disease.
The immune system is a network of cells, tissues, and organs that work together to protect the body from disease. To combat disease, the immune system must detect and defend against countless pathogens and distinguish these pathogens from healthy tissue. When functioning properly, the immune system has a natural ability to recognize and attack cancer cells anywhere in the body.