Lancefield grouping is a system of classification that classifies catalase -negative Gram-positive cocci based on the carbohydrate composition of bacterial antigens found on their cell walls. [1]

Lancefield grouping is the grouping of cell wall carbohydrates of Streptococci used to identify species of beta-hemolytic Streptococci.

Lancefield grouping is defined as a method for differentiating streptococci based on the extraction of polysaccharide antigens from their cell walls, which are identified using known antisera in tests such …

The Lancefield grouping system, developed by Rebecca Lancefield in the 1930s, revolutionized the way we classify and understand streptococci. This system categorizes these bacteria based on the …

* This table includes only the most clinically relevant of the 20 Lancefield groups. † Enterococci were initially included among the group D streptococci but are now classified as a separate genus even …

Developed in the 1930s by microbiologist Rebecca Lancefield, the classification uses precipitation reactions between group specific antigens and antisera to divide beta hemolytic streptococci into …

Lancefield grouping is a serological classification system for streptococci, particularly beta-hemolytic species, that identifies groups based on distinct carbohydrate antigens extracted from the bacterial …

Lancefield grouping is a serological test used to differentiate between different types of beta-hemolytic Streptococcus species. From: Microbiology and Infectious Diseases on the Move [2019]

Nov 23, 2025 · Lancefield grouping is a serological classification system developed by Dr. Rebecca Lancefield in the 1930s to organize the numerous species within the genus Streptococcus.

Lancefield classification is a system used to categorize certain types of bacteria, particularly streptococci, based on the carbohydrate composition of bacterial antigens found on their cell walls. …