Dr. Richard Isaacson was featured by CNN explaining new research describing an extremely rare form of medically acquired Alzheimer’s disease linked to cadaver-derived human growth hormone treatments used decades ago. The study examined a small number of patients who developed early-onset Alzheimer’s years after receiving the now-discontinued therapy, while emphasizing that these cases do not mean Alzheimer’s is contagious or can be transmitted through everyday contact or routine medical care.

Dr. Isaacson helped put the findings into context, noting that the historic treatment has not been used since the mid-1980s and that today’s synthetic growth hormone therapies are safe. He also emphasized that the research offers new insights into how Alzheimer’s develops while reinforcing that there is no risk of catching the disease through normal social interaction or caregiving.

Read the full CNN article to learn more about this rare research finding and what it means—and does not mean—for Alzheimer’s disease.