emm typing and validation of provisional M types for group A streptococci.
نویسندگان
چکیده
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 reference type cultures for each of the M-type or emm-type strains of GAS; the results of the first culture exchange program for a quality control testing system among the national and World Health Organization collaborating centers for streptococci; and dissemination of new approaches to typing of GAS to the international streptococcal community.
منابع مشابه
The prevalence of emm types and Resistance to Erythromycin Pattern among group A Streptococci isolated from the throat in north of Iran
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 Recently, the previous out of date procedures have been replaced by N-terminal emm gene sequence, which has been used in identifying more than 150 emm types.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...
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عنوان ژورنال:
- Emerging Infectious Diseases
دوره 5 شماره
صفحات -
تاریخ انتشار 1999