quellung


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Noun1.quellung - 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).
(13) All isolates were confirmed again by multiplex PCR, (14) serogrouped/typed with Quellung antisera (at Christian Medical College and Hospital, Vellore, India) obtained from Statens Serum Institute (Copenhagen, Denmark).
Serotype identification is performed by the Quellung capsular swelling method.
All pneumococcal isolates that exhibited a positive Quellung reaction using commercial type specific antisera obtained from Statens Serum Institute, Copenhagen, Denmark, were assigned a serotype designation.
Additionally, we determined pneumococcal serotypes by the capsular reaction test (Quellung reaction) using specific antisera (Statens Serum Institut, Copenhagen, Denmark) [5].
Serogrouping: Serogrouping was performed for the viable isolates by: latex agglutination and the Neufeld quellung reaction.
Serotyping was performed by the Quellung reaction using pool, group, type and factor commercial antisera (SSI Diagnostica; Statens Serum Institute, Copenhagen, Denmark).
Serotyping was performed in a reference lab (Soroka University Medical Center, Beer-Sheva, Israel) by capsular swelling observed microscopically (Quellung reaction) after suspension in type-specific antisera.