Current trials have shown that a certain blood test can predict over 50 types of cancer with 99% accuracy before someone shows any symptoms. The testing looks at samples of blood to find telltale chemical changes to pieces of genetic code that leaked into the bloodstream that comes from a tumor. Some of the types of cancer tested include bowel, lung, and ovarian cancer. The test has recently been launched for clinical trials, and experts hope to see it available to everyone as soon as possible. “Although this test is still at an early stage of development, the initial results are encouraging,” commented one of the cancer research professionals.