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- Quellung_reaction abstract "The Quellung reaction is a biochemical reaction in which antibodies bind to the bacterial capsule of Streptococcus pneumoniae, Klebsiella pneumoniae, Neisseria meningitidis, Haemophilus influenzae, Escherichia coli, and Salmonella. The antibody reaction allows these species to be visualized under a microscope. If the reaction is positive, the capsule becomes opaque and appears to enlarge.Quellung is the German word for "swelling" and describes the microscopic appearance of pneumococcal or other bacterial capsules after their polysaccharide antigen has combined with a specific antibody. The antibody usually comes from a bit of serum taken from an immunized laboratory animal. As a result of this combination, and precipitation of the large, complex molecule formed, the capsule appears to swell, because of increased surface tension, and its outlines become clearly demarcated.The pneumococcal Quellung reaction was first described in 1902 by the scientist Fred Neufeld, both as microscopic capsular swelling and macroscopic agglutination (clumping visible with the naked eye). It has been used to identify the 93 known capsular serotypes of Streptococcus pneumoniae in a diagnostic setting, but in recent years has been challenged by molecular typing techniques which target genetic differences.".
- Quellung_reaction thumbnail Pneumococcus_CDC_PHIL_2113.jpg?width=300.
- Quellung_reaction wikiPageID "8089191".
- Quellung_reaction wikiPageLength "3014".
- Quellung_reaction wikiPageOutDegree "22".
- Quellung_reaction wikiPageRevisionID "662175939".
- Quellung_reaction wikiPageWikiLink Antibody.
- Quellung_reaction wikiPageWikiLink Antigen.
- Quellung_reaction wikiPageWikiLink Bacterial_capsule.
- Quellung_reaction wikiPageWikiLink Biochemical.
- Quellung_reaction wikiPageWikiLink Biochemistry.
- Quellung_reaction wikiPageWikiLink Category:1902_in_science.
- Quellung_reaction wikiPageWikiLink Category:1902_introductions.
- Quellung_reaction wikiPageWikiLink Category:Biochemistry_methods.
- Quellung_reaction wikiPageWikiLink Category:Staining.
- Quellung_reaction wikiPageWikiLink Chemical_reaction.
- Quellung_reaction wikiPageWikiLink Escherichia_coli.
- Quellung_reaction wikiPageWikiLink Fred_Neufeld.
- Quellung_reaction wikiPageWikiLink Haemophilus_influenzae.
- Quellung_reaction wikiPageWikiLink Klebsiella_pneumoniae.
- Quellung_reaction wikiPageWikiLink Microscope.
- Quellung_reaction wikiPageWikiLink Neisseria_meningitidis.
- Quellung_reaction wikiPageWikiLink Opacity_(optics).
- Quellung_reaction wikiPageWikiLink Pneumococcus.
- Quellung_reaction wikiPageWikiLink Polysaccharide.
- Quellung_reaction wikiPageWikiLink Salmonella.
- Quellung_reaction wikiPageWikiLink Serous_fluid.
- Quellung_reaction wikiPageWikiLink Streptococcus_pneumoniae.
- Quellung_reaction wikiPageWikiLink File:Pneumococcus_CDC_PHIL_2113.jpg.
- Quellung_reaction wikiPageWikiLinkText "Quellung reaction".
- Quellung_reaction wikiPageWikiLinkText "quellung reaction".
- Quellung_reaction hasPhotoCollection Quellung_reaction.
- Quellung_reaction wikiPageUsesTemplate Template:Microbiology-stub.
- Quellung_reaction wikiPageUsesTemplate Template:Reflist.
- Quellung_reaction subject Category:1902_in_science.
- Quellung_reaction subject Category:1902_introductions.
- Quellung_reaction subject Category:Biochemistry_methods.
- Quellung_reaction subject Category:Staining.
- Quellung_reaction hypernym Reaction.
- Quellung_reaction type Disease.
- Quellung_reaction type Method.
- Quellung_reaction type Polymer.
- Quellung_reaction type Technique.
- Quellung_reaction comment "The Quellung reaction is a biochemical reaction in which antibodies bind to the bacterial capsule of Streptococcus pneumoniae, Klebsiella pneumoniae, Neisseria meningitidis, Haemophilus influenzae, Escherichia coli, and Salmonella. The antibody reaction allows these species to be visualized under a microscope.".
- Quellung_reaction label "Quellung reaction".
- Quellung_reaction sameAs Quellungsreaktion.
- Quellung_reaction sameAs Prueba_de_Quellung.
- Quellung_reaction sameAs m.026r0r6.
- Quellung_reaction sameAs Q7271206.
- Quellung_reaction sameAs Q7271206.
- Quellung_reaction wasDerivedFrom Quellung_reaction?oldid=662175939.
- Quellung_reaction depiction Pneumococcus_CDC_PHIL_2113.jpg.
- Quellung_reaction isPrimaryTopicOf Quellung_reaction.