Here is an interesting article about cancer:
"...humans may have lived with cancer for millennia but, until recently, we knew next to nothing about it. Now, it seems the every day brings promising new research on cancer’s causes, its weaknesses and ways to thwart it.
Some developments, such as vaccines for cervical cancer, are now established; others, such as experimental therapies using viruses, are still very much experimental. We also know now that restraint in diagnosing and treating cancer is better than aggressive therapies that carry harmful side effects.
We compiled a list of cancer breakthroughs and new directions that have happened in recent years (though some of them obviously have roots in earlier decades)."