Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Edwin Klebs shine na farko da ya lura da kwayoyin cuta a cikin hanyoyin numfashi na mutanen da suka mutu daga ciwon huhu a shekara ta 1875. Aikin farko na gano abubuwan da ke haifar da kwayoyin cuta guda biyu, Streptococcus pneumoniae da Klebsiella pneumoniae, Carl Friedländer da Albert Fraenkel ne suka yi a 1882 da 1884. Aikin farko na Friedländer ya gabatar da launi na Gram, gwajin gwaji na yau da kullum da ake amfani dashi a yau don ganowa da rarraba kwayoyin cuta. Takardar Christian Gram da ke bayyana aikin a shekara ta 1884 ta taimaka wajen bambance kwayoyin biyu, kuma ta nuna cewa cutar huhu na iya haifar da kwayar cuta fiye da ɗaya.Sir William Osler, wanda aka sani da "mahaifin likitancin zamani", ya yaba da mutuwa da nakasa da cutar huhu ta haifar, yana bayyana shi a matsayin "shugaban mutanen mutuwa" a 1918, kamar yadda ya shawo kan tarin fuka a matsayin daya daga cikin manyan abubuwan da ke haifar da mutuwa a wannan lokacin. John Bunyan ne ya fara amfani da wannan kalmar game da "cinyewa" (tuberculosis). Osler ya kuma bayyana ciwon huhu a matsayin "abokin tsohon mutum" kamar yadda mutuwa sau da yawa take da sauri kuma ba ta da zafi yayin da akwai hanyoyi masu jinkiri da kuma ciwo don mutuwa. Yawancin ci gaba a cikin 1900s sun inganta sakamakon ga waɗanda ke da ciwon huhu. Da fitowar penicillin da wasu magungunan kashe ƙwayoyin cuta, da fasahohin tiyata na zamani, da kuma kula mai tsanani a ƙarni na 20, yawan mutuwar da ake samu daga ciwon huhu, wanda ya kusan kashi 30 cikin ɗari, ya ragu sosai a ƙasashe masu tasowa. Alurar riga kafi na jarirai game da Haemophilus influenzae nau'in B ya fara ne a 1988 kuma ya haifar da raguwa sosai a lokuta jim kaɗan bayan haka. Alurar rigakafin cutar Streptococcus pneumoniae a cikin manya ya fara ne a 1977, kuma a cikin yara a 2000, wanda ya haifar da irin wannan raguwa.  Tambaya: Wanene ya fara gano streptococcus pnuemoniae?
Carl Friedländer da kuma Albert Fraenkel