EXERCISE XCI. BACILLUS TYPHOSUS Oaffky. 



BACILLUS OF TYPHOID FEVER; EBERTH'S BACILLUS. 



First described by Eberth in 1880, first cultivated by Gaffky, 1884. It is found in the faeces and urine of typhoid patients. 



REFERENCES. Eberth: Virchow's Archiv. 1880, 81; 58 and 1881, 83; 480. Gaffky: Mitth. aus dem Kais. Gesundheitsamte, 1884, 2; 

 372; A. 309; H. 223; L. & K. 16(i; M. & R. 317; M. & W. 141; McF. 306; P. 402; S. 337. 



PHYSIOLOGICAL CHARACTERS. 



i. Relation to temperature: . 



2. Relation to free oxygen: 



3. Relation to other agents, such as: 



desiccation, light, disinfectants, etc.: 



4. Pigment production: 



5. Gas production in glucose media: 



a. Shake culture 



b. Fermentation tube, growth in: (i) open arm: 



(3) rate of development: 24 hours per cent., 48 hours. 



(4) reaction in open arm: 



6. Acid or alkali production, litmus milk 



7. Reduction of nitrates: to nitrites 



8. Indol production; 24 hours 48 hours 



fecal odor; 24 hours 48 hours 



9. Enzyme production: proteolytic 



(2) closed arm: 



.per cent., 72 hours percent hours. 



(5) gas formula, H : CO. : : 



per cent. 



, to ammonia 



.days. 

 . days . 



.diastatic. 



10. Characteristic odor. 



11. Pathogenesis 



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