Resistance Phenotypes and Genotypes of Erythromycin-Resistant <i>Streptococcus pneumoniae</i> Isolates in Beijing and Shenyang, China

Abstract

Of a total of 192 Streptococcus pneumoniae isolates, 149 (77.6%) were not susceptible to erythromycin. Of these 149 isolates, 117 (79.1%) contained the erm(B) gene, 16 (10.8%) contained the mef(A) gene, and 15 (10.1%) harbored both the erm(B) and mef(A) genes.