• Thumbnail for Quellung reaction
    The quellung reaction, also called the Neufeld reaction, is a biochemical reaction in which antibodies bind to the bacterial capsule of Streptococcus pneumoniae...
    7 KB (783 words) - 10:10, 14 July 2023
  • Thumbnail for Griffith's experiment
    the three pneumococcal types (Types I, II, and III) and discovered the quellung reaction to identify them in vitro. Until Griffith's experiment, bacteriologists...
    6 KB (635 words) - 17:04, 6 May 2024
  • Thumbnail for Viridans streptococci
    to optochin Not sensitive Sensitive Pathogenicity to mice Nonpathogenic Pathogenic Quellung test (not actively used[citation needed]) Negative Positive...
    6 KB (626 words) - 20:38, 9 July 2024
  • Thumbnail for Bacterial capsule
    due to an increase in its refractivity. This phenomenon is the basis of quellung reaction. Vaccination using capsular material is effective against some...
    17 KB (1,776 words) - 03:44, 22 June 2024
  • Thumbnail for Serotype
    number of bacteria species, including Streptococcus pneumoniae, display the Quellung reaction visible under a microscope. Others such as Shigella (and E. coli)...
    21 KB (2,195 words) - 12:44, 16 July 2024
  • bile soluble. Just like other streptococci they are catalase-negative. A Quellung test can identify specific capsular polysaccharides. Pneumococcal antigen...
    20 KB (2,312 words) - 12:38, 18 January 2024
  • Thumbnail for C-reactive protein
    demonstrated that it is a native protein. Initially, CRP was measured using the quellung reaction which gave a positive or a negative result. More precise methods...
    47 KB (5,296 words) - 02:18, 19 July 2024
  • Thumbnail for Streptococcus
    damages caused by the hosts oxidative attack. Cia-dependent small RNAs Quellung reaction Streptococcal infection in poultry Streptococcal pharyngitis Streptokinase...
    42 KB (3,761 words) - 21:24, 24 June 2024
  • Thumbnail for Fred Neufeld
    specific antisera. Neufeld called this the quellung reaction, after the German word for swelling. The quellung reaction allowed for easy laboratory identification...
    4 KB (467 words) - 20:53, 6 January 2024
  • 1007/BF00628970. ISSN 1432-1904. S2CID 36389330. Voderberg, Käthe (1961-01-01). "Quellung und Keimung der Samen von Vicia villosa Roth". Flora oder Allgemeine Botanische...
    6 KB (543 words) - 18:08, 29 January 2023