MUCOSUS CAPSULATUS GROUP 171 



The bacilli are found chiefly by examination of the 

 stools or by cultivation of the circulating blood or 

 material from abscesses. Infective material should 

 be rendered innocuous by the means outlined for the 

 colon and typhoid bacilli (p. 112). 



A very important means of diagnosis with all the 

 infections of the typhocolon group is the agglutination 

 test. These congeners produce agglutinins having some 

 affinity for all members of the group. The method of 

 use in this test consists in finding that member of the 

 group that will be clumped by the greatest dilution of 

 the patient's serum. This organism is then considered 

 the causative one. No practical remedy has been 

 found by the use of antitoxins or vaccines. 



MUCOSUS CAPSULATUS GROUP 



This group has been included with the colons by 

 many of the later authorities. Such a classification 

 is open to some objection, but it is quite proper to 

 discuss the organisms directly after the colon group, 

 since the two types have some things in common and 

 both are constantly present in the intestinal tract. 



The bacteria in question are non-motile, plump, 

 straight rods without spores but surrounded by a 

 capsule, at least when in the animal body. They 

 measure from -g-g-J-o-fr "to s^Vo" mcn m length, and from 

 5~oTTTr to TGTRTO mcn m width. They may be found 

 lying singly, but when in the body are commonly 

 united in pairs or short chains about which one may 

 find the capsule. We may find the capsule in milk or 

 gelatine cultures. They are easily stained by ordinary 



