title: Creating the pneumococcal pneumonia vaccine: a hundred-year story.
mesh_terms: D001428:Bacterial Vaccines / Q000266:history*; D005858:Germany; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D011018:Pneumonia, Pneumococcal / Q000517:prevention & control*; D013019:South Africa; D013296:Streptococcus pneumoniae / Q000276:immunology*; D014481:United States; D014611:Vaccination / Q000266:history*
chemical_list: D001428:Bacterial Vaccines