184 PATHOGENIC BACTERIA 



has seen it as the cause of a diffuse pelvic inflammation. 

 When injected into animals the paracolon bacilli 

 are capable of giving rise to a fatal septicemia with 

 acute inflammations, hemorrhages, and collapse. 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. 125). 



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 writers. 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 3-5^-^0 to ToVo mcn m l en gth and from 

 ooooo "to mc ^ m w ^th. The ma be found 



