title: Drug-resistant pneumococci increasingly common in elderly, study suggests.
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D001428:Bacterial Vaccines / Q000191:economics; D002442:Ceftazidime / Q000494:pharmacology; D006801:Humans; D010403:Penicillin Resistance; D010406:Penicillins / Q000494:pharmacology; D011014:Pneumonia / Q000453:epidemiology* / Q000382:microbiology*; D013296:Streptococcus pneumoniae / Q000187:drug effects*; D015662:Trimethoprim, Sulfamethoxazole Drug Combination / Q000494:pharmacology; D018440:beta-Lactam Resistance
chemical_list: D000900:Anti-Bacterial Agents; D001428:Bacterial Vaccines; D010406:Penicillins; D015662:Trimethoprim, Sulfamethoxazole Drug Combination; D002442:Ceftazidime