Rebecca Lancefield

Rebecca Lancefield
Rebecca Lancefield
	Lancefield in 1960
Born	January 5, 1895; New York City, U.S.
Died	March 3, 1981 (aged 86)
Alma mater	Wellesley College (B.A.); Columbia University (M.S. & PhD);
Known for	Lancefield grouping
Spouse	Donald Lancefield
Awards	T. Duckett Jones Award; Medal of the New York Academy of Medicine;
	Scientific career
Fields	Bacteriology; Immunology;
Institutions	Rockefeller University; Columbia University;
Doctoral advisor	Hans Zinsser
Other academic advisors	Oswald Avery; Alphonse Dochez;

Rebecca Craighill Lancefield (January 5, 1895 – March 3, 1981) was an American microbiologist. She joined the Rockefeller Institute for Medical Research (now Rockefeller University) in New York in 1918, and was associated with that institute throughout her career. Her bibliography comprises more than 50 publications published over 60 years.

Lancefield is best known for her serological classification of β-hemolytic streptococcal bacteria, Lancefield grouping, which is based on the carbohydrate composition of bacterial antigens found on their cell walls. She is also responsible for the serological typing of group A streptococci.