DNA mutations happen all the time in the body, but the immune system usually detects and deals with them. When the system fails, cancer results. Yet some animals, such as elephants, almost never get cancer, and scientists have learned that the elephant DNA repair system is 20 times more powerful than the human system. Experts explain how they hope to tap this knowledge.
The flu’s unique ability to mutate makes it one of the toughest diseases to solve, as it evades vaccines and treatment. It also has a deadly history, which prompts fears each flu season. A noted expert discusses all about the flu and its myths.