Merrill Chase
Encyclopedia
Merrill W. Chase was an immunologist working at the Rockefeller University
Rockefeller University
The Rockefeller University is a private university offering postgraduate and postdoctoral education. It has a strong concentration in the biological sciences. It is also known for producing numerous Nobel laureates...

 in New York City who is credited with discovering cell-mediated immunology in the early 1940s. While working with Dr. Karl Landsteiner
Karl Landsteiner
Karl Landsteiner , was an Austrian-born American biologist and physician of Jewish origin. He is noted for having first distinguished the main blood groups in 1900, having developed the modern system of classification of blood groups from his identification of the presence of agglutinins in the...

, Dr. Chase discovered that white blood cells, and not antibodies alone, were important instruments of the immune system. His findings laid the groundwork for later research that discovered the role of B cells, T cells and other types of white blood cells.
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