title: The pneumococcus at Hopkins: early portents of future developments.
mesh_terms: D000818:Animals; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D008396:Maryland; D011008:Pneumococcal Infections / Q000266:history / Q000382:microbiology*; D011018:Pneumonia, Pneumococcal / Q000266:history / Q000382:microbiology; D012463:Saliva / Q000276:immunology; D012577:Schools, Medical / Q000266:history; D018805:Sepsis / Q000209:etiology; D013296:Streptococcus pneumoniae / Q000302:isolation & purification*; D014115:Toxemia / Q000209:etiology / Q000266:history