It was the neurosurgeons who fascinated me. When they explained what they could do surgically to help, I thought, I want to be like them. I want to k… - Sanjay Gupta

I was a bookish kid. I spent long hours in the library reading everything I could find, histories, biographies, science fiction, fantasy, mysteries. I was curious about the world and there’s no better way to find things out than through the pages of a book. Even today if some kid asks me what’s the first step to take to become a doctor, I answer, “Read, read, read.”

Experts say we are "due" for one. When it happens, they tell us, it will probably have a greater impact on humanity than anything else currently happening in the world. And yet, like with most people, it is probably something you haven't spent much time thinking about. After all, it is human nature to avoid being consumed by hypotheticals until they are staring us squarely in the face. Such is the case with a highly lethal flu pandemic. And when it comes, it will affect every human alive today.

I was in my teens when our family faced a medical crisis. My grandfather, with whom I was very close, had a stroke and landed in the hospital. Sitting anxiously at his bedside, I watched nurses come and go, checking his vitals and looking at the monitors attached to his body. I remember sitting there wondering what could I do to make him feel better—to bring back the warm, thoughtful man I knew.