What Causes a Person’s Immune System to Weaken?

Headscratchers: What causes a person’s immune system to weaken?

Immunology expert Allan Kirk, MD, PhD, discusses what compels the immune system to respond to danger, and how our immune systems change over time.

Kirk is a transplant surgeon and the chair of the Department of Surgery. He is also professor in the Departments of Immunology and Pediatrics at Duke and a member of Duke Cancer Institute.

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[HeadScratchers is a mini-podcast from the Duke University School of Medicine, hosted by Lindsay Key, that asks Duke experts to help us understand the questions in science that have us scratching our heads. This episode first aired in late May]