Nathan Wolfe travels to the viral hot spots of the world, where viruses first jump from animals to humans. The scientist spends his days tracking emerging infectious diseases before they turn into global pandemics.
Science writer Jennifer Ackerman explores "the uncommon life of your common cold" in her new book, Ah-Choo! She explains why colds follow that familiar throat-to-nose-tochest path of misery -- and details what science shows about various cold remedies. (Prepare to be disappointed.)