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"
quellung
biological process, organic process - a process occurring in living organisms
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All pneumococcal isolates that showed a positive Quellung reaction with commercial type-specific antisera (Statens Serum Institute, Copenhagen, Denmark) were assigned a serotype designation (11).
Concurrent infection with hepatitis C Virus and Streptococcus pneumoniae
Serotyping was performed by the Quellung reaction using pool, group, type and factor commercial antisera (SSI Diagnostica; Statens Serum Institute, Copenhagen, Denmark).
The epidemiology of invasive pneumococcal disease in British Columbia following implementation of an infant immunization program: increases in herd immunity and replacement disease
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).
Invasive pneumococcal disease in children 5 years after conjugate vaccine introduction--eight states, 1998-2005
All serotypes were confirmed using the Quellung reaction (as per manufacturer's instruction).
New multilocus sequence types of Streptococcus pneumoniae isolates from patients with respiratory infections in India
Serogrouping and serotyping were performed by the quellung reaction using antiserum provided by Statens Serum Institute (Copenhagen, Denmark) (8).
Persistence and complex evolution of fluoroquinolone-resistant Streptococcus pneumoniae clone

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