THE DEVELOPMENT OF A PHAGE-TYPING SYSTEM FOR GROUP-B STREPTOCOCCI
نویسندگان
چکیده
منابع مشابه
Method for phage typing group A type 49 streptococci.
A method of phage subtyping group A type 49 streptococci is described. The method is similar to that used for phage typing staphylococci, except that lysates obtained by induction with mitomycin C rather than propagated stock phages were used. Five type 49 strains were used as phage donors. Seventy-two strains of type 49 streptococci isolated from 10 worldwide sources were examined by this meth...
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Two methods of typing group A hemolytic streptococci have been described: slide agglutination and anti-M precipitin tests. The first, developed by Griffith (1), is more extensively used. I t has the distinct advantages of requiring small amounts of serum and culture, and of a quick reaction time when all conditions are favorable. I t has certain disadvantages: The granular growth of some strain...
متن کاملNew phenotypic typing scheme for group B streptococci.
AIMS To develop a new typing system for group B streptococci based on 35S-methionine-labelled protein profiles of bacterial proteins. METHODS 377 clinical isolates of group B streptococci were examined by incorporation of 35S-methionine into bacterial proteins under strict anaerobic conditions. After sodium dodecylsulphate-polyacrylamide gel electrophoresis, autoradiography was performed. The...
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It is frequently not possible to type group A streptococei. Only 33% of group A streptococei from Nashville children in a recent study (Quinn and Martin, Am. J. Hyg. 73:193, 1961) were typable, and there have been years when as few as 5% could be typed. This study was designed to test one possible reason for failure to type certain strains of group A streptococci, namely, inadequacy of growth m...
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Streptococci of Lancefield group D were isolated from 52.2% of pharyngeal, 55.5% of urethral, 56.6% of endocervical, and 75.4% of ano-rectal specimens. Seventeen phages isolated from sewage and urogenital specimens were selected for phage typing. Four of these lysed only the strains of Streptococcus faecalis and its variety liquefaciens. Another six phages lysed only the strains of Streptococcu...
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ژورنال
عنوان ژورنال: Journal of Medical Microbiology
سال: 1980
ISSN: 0022-2615,1473-5644
DOI: 10.1099/00222615-13-1-133