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On the existence of two forms of diphtheria bacillus—<i>B. Diphtheriæ gravis</i>and<i>B. Diphtheriæ mitis</i>—and a new medium for their differentiation and for the bacteriological diagnosis of diphtheria

MedicinePathogenesisBacteriologyBacteriological DiagnosisMicrobiologyMolecular MicrobiologyNew MediumBacterial PathogensClinical MicrobiologyDiagnostic Microbiology