quellung reaction


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quellung reaction

[′kwel·əŋ rē‚ak·shən]
(microbiology)
Swelling of the capsule of a bacterial cell, caused by contact with serum containing antibodies capable of reacting with polysaccharide material in the capsule; applicable to Pneumococcus, Klebsiella, and Hemophilus.
References in periodicals archive ?
Serotyping was performed by using the quellung reaction with antiserum for serogroup 6, factor 6b, and factor 6c (Statens Serum Institute, Copenhagen, Denmark).
All pneumococcal isolates were serotyped according to standard methods by using the Quellung reaction (15-17).
Serotyping was conducted by using the quellung reaction with reagents from Statens Serum Institut (Copenhagen, Denmark) (18).