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  • Title: [Distribution of the genes of streptococcal pyrogenic exotoxin among clinical isolates of Streptococcus pyogenes from the pharynx].
    Author: Kishishita M, Takeda Y, Minamide W, Fujita K.
    Journal: Kansenshogaku Zasshi; 1995 May; 69(5):568-71. PubMed ID: 7602190.
    Abstract:
    The distribution of the genes of streptococcal pyrogenic exotoxin (speA, B and C) among the 400 clinical isolates of Streptococcus pyogenes from Japanese pharnyx was detected by the PCR method (Nihonrinsho 50: 326, 1992). Sixty, 399 and 303 isolates were positive for the speA, B and C genes, respectively. However, only one isolate had none of these genes. Several isolates possessed two or three genes, i.e., both speB & C, speA & B or speA, B & C were found in 258, 30 and 30 isolates, respectively. No isolate possessing both speA & C without speB was found in this study. We concluded that the PCR method is much more useful for the epidemiological study on streptococcal pyrogenic exotoxins (SPE) of S. pyogenes isolates because of specificity, rapidity and sensitivity of this method compared with the conventional SPE identification method.
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