title: A new pneumococcus type. Type 12A.
mesh_terms: D000328:Adult; D000368:Aged; D000900:Anti-Bacterial Agents / Q000494:pharmacology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011008:Pneumococcal Infections / Q000382:microbiology*; D013296:Streptococcus pneumoniae / Q000145:classification* / Q000187:drug effects / Q000472:pathogenicity; D014774:Virulence
chemical_list: D000900:Anti-Bacterial Agents