Erythromycin-resistant Streptococcus pneumoniae.
D004352:Drug Resistance, Microbial; D004917:Erythromycin / Q000627:therapeutic use*; D006801:Humans; D011008:Pneumococcal Infections / Q000188:drug therapy*; D013296:Streptococcus pneumoniae / Q000187:drug effects*
D004917:Erythromycin