Penicillin-insensitive pneumococci.
D006801:Humans; D007223:Infant; D009512:New Guinea; D010402:Penicillin G Procaine / Q000627:therapeutic use; D010403:Penicillin Resistance; D011014:Pneumonia / Q000517:prevention & control; D013296:Streptococcus pneumoniae / Q000187:drug effects*
D010402:Penicillin G Procaine