Six years ago, I was traveling in India, working on a story about measles. I was visiting a public hospital in New Delhi, when I walked into the waiting room and saw the tiniest baby I had ever seen.
An elderly woman — perhaps a grandma — was cradling the newborn in her arms. The little baby was wrapped in a blanket, and a tiny knit cap covered her head, which wasn't much bigger than a small orange. The newborn could not have weighed more than four pounds.