title: Study documents spread of drug-resistant pneumococci.
mesh_terms: D000328:Adult; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D001428:Bacterial Vaccines; D002648:Child; D002675:Child, Preschool; D004352:Drug Resistance, Microbial; D006801:Humans; D011008:Pneumococcal Infections / Q000188:drug therapy / Q000382:microbiology*; D013296:Streptococcus pneumoniae / Q000187:drug effects* / Q000276:immunology; D014611:Vaccination
chemical_list: D000900:Anti-Bacterial Agents; D001428:Bacterial Vaccines