Lancefield classification
- Lancefield classification
a classification of the
Streptococcus bacteria based on the presence or absence of antigenic carbohydrate on the cell surface. Species are classified into the groups A-S. Most species causing disease in humans belong to groups A, B, and D.
R. C. Lancefield (1895-1981), US bacteriologist
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a serologic classification of the hemolytic streptococci, based on extraction and examination by a precipitin technique of group-specific carbohydrate antigens called C carbohydrates in the cell wall. Groups A to O have been established, with groups A to G being the most common ones infecting humans.
Medical dictionary.
2011.
Look at other dictionaries:
Lancefield classification — a classification of the Streptococcus bacteria based on the presence or absence of antigenic carbohydrate on the cell surface. Species are classified into the groups A–S. Most species causing disease in humans belong to groups A, B, and D [C.… … The new mediacal dictionary
Lancefield classification group — Lance·field classification, group (lansґfēld) [Rebecca Craighill Lancefield, American bacteriologist, 1895–1981] see under classification and group … Medical dictionary
Lancefield group — Lance·field group lan(t)s .fēld also Lance·field s group .fēldz n any of the serologically distinguishable groups into which most streptococci can be divided and which are based on the polysaccharide antigens present in the streptococcal cell… … Medical dictionary
Классификация Лэнсфилда (Lancefield Classification) — классификация стрептококковых бактерий (бактерий, принадлежащих роду Streptococcus), основанная на наличии или отсутствии на поверхности их клеток определенного антигена. Различные виды этих бактерий подразделяются на группы и обозначаются… … Медицинские термины
classification — A systematic arrangement into classes or groups based on perceived common characteristics; a means of giving order to a group of disconnected facts. adansonian c. the c. of organisms based on giving equal weight to every character of the… … Medical dictionary
Lancefield — Rebecca Craighill, U.S. bacteriologist, 1895–1981. See L. classification … Medical dictionary
Lancefield precipitation test — a ring precipitation test for identification and classification of streptococci. Group specific antibody reacts in vitro with group specific polysaccharide to produce a ring of precipitation where the two reagents react at the interface … Medical dictionary
Rebecca Lancefield — Rebecca Craighill Lancefield (born January 5, 1895; died March 3, 1981) was a prominent American microbiologist. She joined the Rockefeller Institute for Medical Research in New York in 1918 and was associated to that institute throughout her… … Wikipedia
КЛАССИФИКАЦИЯ ЛЭНСФИЛДА — (Lancefield classification) классификация стрептококковых бактерий (бактерий, принадлежащих роду Streptococcus), основанная на наличии или отсутствии на поверхности их клеток определенного антигена. Различные виды этих бактерий подразделяются на… … Толковый словарь по медицине
Streptococcus — Not to be confused with Staphylococcus. Streptococcus Scientific classification Kingdom: Bacteria Phylum … Wikipedia
