4Efstratiou A. Group A streptococci in the 1990s. J Antimicrob Cheroot her, 2000,45 Suppl : S3-12.
5Sakota V, Fry AM, Lietman TM, et al. Genetically diverse group A streptococci from children in far-western Nepal share high genetic relatedness with isolates from other countries. J Clin Mierobiol, 2006,44 ( 6 ) : 2160- 2166.
6Jing HB, Ning BA, Hao HJ, et al. Epidemiological analysis of group A streptococci recovered from patients in China. J Med M crobiol,2006,55(Pt 8) :1101-1107.
7Tanaka D,Gyobu Y, Kodama H, et al. emm typing of group A Streptococcus clinical isolates: identification of dominant types for throat and skin isolates. Microblol Immunol, 2002,46 (7) : 419- 423.
8O' Brien KL,Beall B, Barrett NL, et al. Epidemiology of invasive group A Streptococcus disease in the United States, 1995 - 1999. Clin Infect Dis,2002,35(3) :268-276.
9Ho PL,Johnson DR, Yue AW, et al. Epidemiologic analysis of invasive and noninvasive group A streptococcal isolates in Hong Kong. J Clin Microbiol,2003,41(3) :937-942.
10Beall B,Facklam R, Thompson T. Sequencing emm specific PCR products for routine and accurate typing of group A streptococci. J Clin Microbiol, 1996,34 (4) : 953-958.
