Learn how Type B Influenza virus has genetic drift, whereas Type A Influenza virus has genetic drift AND shift. Rishi is a pediatric infectious disease physician and works at Khan Academy. [7:44]

The flu virus has the unique ability to change in two different ways, causing genetic shift and drift. Learn exactly how these two mechanisms differ from one another. [4:55]

A video discussing the unique ability of the flu virus to change in two different ways. The change causes either genetic shift and drift. [4:55]