The UAB Division of Clinical Immunology and Rheumatology is an integral part of one of the nation's largest health systems. Nationally known for our compassionate care, cutting-edge research, and ...

My guest today is Dr. Vincent Racaniello. He's professor of microbiology and immunology at Columbia. Thanks for joining me, Dr. Racaniello. VINCENT RACANIELLO, PhD: Good to be back, John.