title: Cross infection produced by tetracycline-resistant pneumococci.
mesh_terms: D002675:Child, Preschool; D003428:Cross Infection; D004352:Drug Resistance, Microbial; D006801:Humans; D007223:Infant; D011008:Pneumococcal Infections / Q000175:diagnosis*; D013296:Streptococcus pneumoniae / Q000302:isolation & purification*; D013752:Tetracycline / Q000627:therapeutic use*
chemical_list: D013752:Tetracycline