The rapid recognition of Lancefield group B haemolytic streptococci
نویسندگان
چکیده
منابع مشابه
Clinical application of immunofluorescence. 3. Identification of Lancefield group B streptococci.
The identification of Lancefield group B streptococci with immunofluorescence was studied after significant differences between the precipitin and immunofluorescent results were noted. It was found that strains of group B streptococci, unlike groups A, C, and G streptococci, do not reliably react with a fluorescein isothiocyanate-labeled conjugate that contains antibodies mainly against C polys...
متن کاملEvaluation of rapid methods of identifying group B streptococci.
Rapid methods of identifying Lancefield group B streptococci were compared to the standard Fuller's extraction method. Such tests as sodium hippurate hydrolysis, bile tolerance, aesculin hydrolysis, pyruvate fermentation, Camp factor, pigmentation, and bacitracin haemolysis were tested on both routine clinical specimens and National Collection of Type Culture strains. The results show that pigm...
متن کاملRapid recognition of group B streptococci by pigment production and counterimmunoelectrophoresis.
Streptococci from clinical isolates were studied for their ability to produce pigment in stab cultures in Columbia agar. Serological grouping of these organisms was done by counterimmunoelectrophoresis using Burroughs-Wellcome antisera. In this group of isolates, 66 of the 68 organisms grouped as B by serological testing produced pigment in the Columbia agar stab cultures. Pigment was not produ...
متن کاملThe use of bacitracin for identifying group A haemolytic streptococci.
The recognition of Lancefield's Group A as the most,commonly pathogenic members of the haemolytic streptococci has prompted several attempts at devising a rapid cultural diagnostic method such as the addition of maltose or glucose to blood agar, which alters the haemolytic activity of Group A strains (Kodama, 1937; Simmons and *Wilson, 1941). This paper describes the use of an antibiotic that i...
متن کاملRapid identification of group B streptococci by counterimmunoelectrophoresis.
Beta-hemolytic streptococcal isolates have been examined by counterimmunoelectrophoresis (CIE) with group B antiserum to determine whether this techinque is of value in the rapid identification of group B strains. Ninety stock cultures and 100 clinical isolates of beta-hemolytic streptococci including representatives of groups A, D, C, G, and B were inoculated into Todd-Hewitt broth; after incu...
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ژورنال
عنوان ژورنال: Journal of Clinical Pathology
سال: 1974
ISSN: 0021-9746
DOI: 10.1136/jcp.27.11.902