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Correlation of PFGE patterns, penicillin resistance, macrolide resistance genes and mutation in penicillin binding protein genes in strains of S. pneumoniae serotypes 19F and 23F
S, penicillin-susceptible. I, penicillin intermediate resistant. R, penicillin-resistant.
Penicillin binding protein genes pbp1a, pbp2x, and pbp2a: +, altered; −, not altered.
Macrolide resistant genes mef(A) and erm(B): +, positive; −, negative.
