Could early exposure to peanuts possibly prevent peanut allergies in high-risk infants? In a new Harvard Medical School immunology course, two groups of third-year students debated the pros and cons of the question this year.

“This course took us to the edge of what we know in the field of immunology again and again. Our course directors pushed us to generate our own hypotheses, envision our own theories and question existing paradigms. There is so much still to discover,” said Cannon Society student Andrew Foley. “And how exciting is that?”