quellung reaction

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quel·lung re·ac·tion

2. if pneumococcal organisms, India ink, and specific antisera are mixed, the antibodies present in the sera will bind to the polysaccharide antigens of the pneumococcal capsule and the capsule will appear more opaque and swollen. This test will identify the organism as being pneumococcal as well as the specific capsular types. Synonym(s): capsular precipitation reaction
[Ger. Quellung, swelling]
Farlex Partner Medical Dictionary © Farlex 2012

quel·lung re·ac·tion

(kvel'lung rē-ak'shŭn)
1. Synonym(s): Neufeld capsular swelling.
2. If pneumococcal organisms, India ink, and specific antisera are mixed, the antibodies present in the sera will bind to the polysaccharide antigens of the pneumococcal capsule and the capsule will appear more opaque and swollen.
[Ger. Quellung, swelling]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

Neufeld,

Ferdinand, German bacteriologist, 1869-1945.
Neufeld capsular swelling - increase in opacity and visibility of the capsule of capsulated organisms exposed to specific agglutinating anticapsular antibodies. Synonym(s): Neufeld quellung reaction; Neufeld reaction; quellung phenomenon; quellung reaction; quellung test
Neufeld quelling reaction - Synonym(s): Neufeld capsular swelling
Neufeld reaction - Synonym(s): Neufeld capsular swelling
Medical Eponyms © Farlex 2012