Lancefield grouping
Sistema de Lancefield
- Date
- c. 1933 · confidence low
- Place
- New York, New York, United States
- Credited to
- Rebecca Lancefield
- Field
- Life & health
What was discovered
The Lancefield system classifies catalase-negative Gram-positive cocci by the carbohydrate composition of their cell-wall antigens, a key tool in clinical microbiology for decades.
What it led to
- clinical classification of streptococcal infections
- identification of Streptococcus species
- basis for rapid serological tests
- continued use in medical microbiology