quellung reaction

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Noun1.quellung reaction - the swelling of the capsule surrounding a microorganism after reaction with an antibody; the basis of certain tests for identifying microorganisms; "pneumococcus quellung"
biological process, organic process - a process occurring in living organisms
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We determined serotype by using Neufeld's Quellung reaction and antimicrobial drug resistance by MIC testing, as previously described (10).
Confirmation and factor typing were performed by the capsular reaction test (Quellung reaction) using specific antisera (SSI).
Serotyping was performed by the Quellung reaction using pool, group, type and factor commercial antisera (SSI Diagnostica; Statens Serum Institute, Copenhagen, Denmark).
Pneumococcal isolates were serotyped at reference laboratories (CDC and Minnesota Department of Health) by use of the Quellung reaction and grouped as PCV7 types (the seven serotypes in the PCV7 formulation) and non-PCV7 types (all other serotypes).
All serotypes were confirmed using the Quellung reaction (as per manufacturer's instruction).
Serogrouping and serotyping were performed by the quellung reaction using antiserum provided by Statens Serum Institute (Copenhagen, Denmark) (8).