How Do Viruses Jump From Animals to Humans?

This animation shows how cancer cells travel from the place in the body where they first formed to other parts of the body.

Today, about one-tenth of the world’s population are southpaws. Why are such a small proportion of people left-handed -- and why does the trait exist in the first place? Daniel M. Abrams investigates how the uneven ratio of lefties and righties gives insight into a balance between competitive and cooperative pressures on human evolution.

Find out about why there is so much excitement about this new therapy, which patients are the best candidates, as well as CAR T-cell effectiveness, safety, and costs.