Even if you've taken a side in the debate over vaccines, you will probably want to hear Dr. Andrea Ferrante out.
Ferrante is an assistant professor of biology at the University of Alaska-Fairbanks, and he's just received a grant to study the molecular processes that make vaccines work.
If your first response is "huh?"... consider this: the creator of vaccines, Edward Jenner, had no idea WHY vaccines worked, and even today's scientists have plenty of questions.
Hence Dr. Ferrante's quest, which he details in a chat with The Exchange.