In a first, scientists have used gene editing to disable a potentially dangerous virus harbored by two-thirds of the world's population.

The first national study tracking primary care use over the last decade raises concerns.

MD student John Hochstein's heart transplant at age 4 was followed by cancer and organ rejection. Now, he's dedicating his life to medicine and helping others.

Harvard's longest-serving current dean, R. Bruce Donoff, discusses the importance of integrating oral medicine and primary care to improve health.