B Cells are a type of white blood cell that are responsible for fighting infection. They produce antibodies which bind to and neutralize antigens. There are a variety of different markers that can be used to identify b cells.

The most common b cell marker is CD19. This antigen is expressed on the surface of almost all B cells. Other markers that can be used to identify B cells include CD20, CD21, CD22, CD23, CD24, CD38, and CD45.

Each of these markers is expressed on a specific subset of B cells. For example, CD20 is expressed on B cells that …