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
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
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
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
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
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
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
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