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Cross-reactions Between Pneumococci and Other Streptococci Due to C Polysaccharide and F Antigen

Overview
Specialty Microbiology
Date 1987 Oct 1
PMID 3499450
Citations 27
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Abstract

By serological methods, all 83 known types of Streptococcus pneumoniae could be shown to possess C polysaccharide and F antigen. Cross-reactions due to these two antigens between pneumococci and a broad range of most other commonly encountered streptococci were examined. The presence of an antigen closely similar or identical to pneumococcal C polysaccharide was demonstrated in some strains of Streptococcus mitior. Therefore, we conclude that pneumococci cannot be identified serologically from mixed samples without culture. Streptococcal group C antiserum was found to cross-react with pneumococcal F antigen.

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References
1.
Yurchak A, Austrian R . Serologic and genetic relationships between pneumococci and other respiratory streptococci. Trans Assoc Am Physicians. 1966; 79:368-75. View

2.
Sjogren A, Holmberg H, Krook A . Etiologic diagnosis of pneumonia by antigen detection: crossreactions between pneumococcal C-polysaccharide and oral microorganisms. Diagn Microbiol Infect Dis. 1987; 6(3):239-48. DOI: 10.1016/0732-8893(87)90018-6. View

3.
Potter M, Leon M . Three IgA myeloma immunoglobulins from the BALB/ mouse: precipitation with pneumococcal C polysaccharide. Science. 1968; 162(3851):369-71. DOI: 10.1126/science.162.3851.369. View

4.
Fujiwara M . The Forssman antigen of pneumococcus. Jpn J Exp Med. 1967; 37(6):581-92. View

5.
Kronvall G . A rapid slide-agglutination method for typing pneumococci by means of specific antibody adsorbed to protein A-containing staphylococci. J Med Microbiol. 1973; 6(2):187-90. DOI: 10.1099/00222615-6-2-187. View