412 AnCRO-ORGANISAIS AND DISEASE [chap. 



present. In some acute cases the mucus flakes of the typical 

 rice-water stools or of the intestinal fluid contain these comma 

 bacilli in enormous numbers, almost to the exclusion of 

 other bacteria ; such is the case in some typical cases in 

 the mucus flakes taken directly from the watery contents 

 of the ileum, though the mucus flakes taken in the same 



Fig. 170. — FiLjil SrEcniEX of a Fl.^ke of the Rice-water Fluid of a 



FEKTIIEK C.\SE 



Numerous flagella art: si^cn. 

 X loco. 



body from the jejunum, in all other respects identical, 

 contain but few of these comma bacilli. In other equally 

 typical acute cases they are mixed up with other bacteria. 



There is no definite relation between the number of 

 Koch's vibrios in the intestinal fluid and the severit)', 

 acuteness or purity of the case. Some cases there no 

 doubt are in which the mucus flakes of the rice-water 



