ASIATIC CHOLERA. 367 



that Koch's comma-bacilli are not constantly found ; and that 



the comma-bacilli obtained from typical cholera cases show a 



great variation in cultivation, and cannot be distinguished from 



comma-bacilli from other sources. 



Ounninsrham asserts that ,,, ., 



comma-bacilli resembling Koch's ifr^^T ''2>.'" 



are found in the intestine in '^C^'^^S^C^V'..'!!, T*-. 



health. Sternberg, on the other 'i.y if V-t -'S V* 



hand, made a number of examina- '^'C-' 



tions of the evacuations of yellow 



, . Fig. 156. —Comma-bacilli OF THE MOUTH, 



fever patients and healthy mdi- ^ ^qq (Van Ekmengem). 



viduals, and failed to find any 



micro-organism resembling the cholera spirillum. 



Various comma-bacilli have been isolated from different sources 

 and compared with Koch's comma-bacillus. Comma-bacilli have been 



found in the mouth by Lewis ; 

 'X in cholera nostras by Finkler and 



^~Ji^!^i Prior ; in cheese by Deneke ; 



',i.i|iiS;^ V. in hay infusion and sewage by 



^ V.) '■^ ^-^/M^N-^W Weibel ; in the intestines of fowls 



'('' ' f^^%^iK;?^?J''' by Gamaleia, and in water by 

 ^■'yffs- <'■' Sanarelli. 



3*''*' Whether the comma-bacillus 



Fig. 157.-Finkleb's Comma-bacilli ; is the cause of cholera or 

 fbom Cholera nosteas, x 700 not, its detection is an aid in 

 (Flugge). diagnosis. If we are dealing 



with a case alleged to be one of Asiatic cholera, and a micro- 

 organism is found in the intestinal evacuations, which can be 

 differentiated from the comma-bacillus described by Finkler in 

 cholera nostras, and identified 



with the comma-bacillus de- y - ^ . 



scribed by Koch, we are justified "" , " ^ ^-- ^,* 



in regarding the case as one of X ^ , <//^o , ~ 



Asiatic cholera. But we cannot ^-~ ' K ^ ^ ^~' ^>'' ^ 



diagnose Koch's comma-bacillus, ' '^^-iT -._ r -^^ 



with certainty, unless we know ^~ 



the source of the culture. The ^^^ 158.— Dbneke's Comma-bacilli, 

 clinical symptoms of cholera in j-eom Cheese, x 700 (Flugge). 



man, and especially the presence 



of rice-water stools, must be taken into account, together with 

 the biological, morphological, and chemical characteristics of 

 the baciUi which are found to be present. There are several 



