Restriction fragment patterns and emm types of group G streptococci
نویسندگان
چکیده
منابع مشابه
Evaluation of emm gene types, toxin gene profiles and clonal relatedness of group A streptococci.
The aim of this study is to evaluate antibiotic susceptibilities, emm gene types, toxin gene profiles and clonal relatedness of group A streptococci (GAS) isolates obtained from patients and carriers. A total of 79 clinical isolates from patients and 60 isolates from carriers were included in the study. Emm typing, toxin gene detection for speA, speB, speC, speG and smeZ genes and pulsed-field ...
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This report discusses the following issues related to typing of group A streptococci (GAS): The development and use of the 5' emm variable region sequencing (emm typing) in relation to the existing serologic typing system; the designation of emm types in relation to M types; a system for validation of new emm types; criteria for validation of provisional M types to new M-types; a list of refere...
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We conducted a nationwide surveillance of the variable 5' emm-like (M-like protein gene) sequences from 214 pharyngeal group C and group G streptococci. Almost 75% of the isolates exhibited emm or emm-like sequences previously described. We identified six new 5' emm-like regions, and almost 23% of the isolates were nontypeable. Five emm-like sequences accounted for more than 50% of the isolates...
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Abstract Background and objectives: Group A Streptococcus (GAS) strains have been identified by serologic methods based on surface protein antigens, T and M. Accordingly, different serotypes have been reported worldwide. Recently, the previous out of date procedures have been replaced by N-terminal emm gene sequence, which has been used in identifying more than 150 emm types. We aimed to determ...
متن کاملComparison of epidemic and endemic group G streptococci by restriction enzyme analysis.
Restriction enzyme profiles of group G beta-hemolytic streptococci associated with a point source outbreak and an outbreak of sporadic pharyngitis in two different communities were compared. To asses the epidemiologic utility of this approach for studying group G streptococci, DNA fingerprints of strains responsible for a point source outbreak of pharyngitis associated with the consumption of c...
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ژورنال
عنوان ژورنال: Journal of Medical Microbiology
سال: 2010
ISSN: 0022-2615,1473-5644
DOI: 10.1099/jmm.0.020230-0