GENUS BACTERIUM 265 



tiply in the intestine of the flies and they were practically 

 eliminated within 48 hours. He experimented with the green 

 bottle fly (Lucilia Caesar), blow fly (Caliphora vomitoria) 

 and the house fly (Musca domestica) . He calls attention to 

 the value of rat leprosy in studying the role that parasitic in- 

 sects may play in the transmission of leprosy bacteria. 



SEPTICEMIA HEMORRHAGICA GROUP (HUEPPE) OR PASTEURELLA 



General discussion of the group. The bacterium of 

 chicken cholera, the bacterium of rabbit septicemia, bacterium 

 of swine plague (Schweineseuche) and bacterium of hemor- 

 rhagic septicemia in cattle were found to be very closely re- 

 lated morphologically and in many if not all of their biological 

 properties one to the other. The general resemblance in the 

 effect of these organisms upon the animal body led Hueppe in 

 1886 to apply the name Bact. septicemiae hemorrhagicae to 

 all of these organisms. Trevisan in honor of Pasteur proposed 

 the general name Pasteurella for this group of bacteria. 

 Lignieres x classified all of the diseases produced by this group 

 of organisms as Pasteurelloses. He also reported saprophytic 

 organisms as well as highly virulent forms belonging to this 

 group. Moore 2 found these organisms in the upper air pas- 

 sages of a large percentage of cattle, sheep, swine, dogs and 

 cats. King 3 found it on the conjunctiva of a healthy chicken. 

 The evidence seems to warrant the conclusion that this group 

 is widely distributed and that it can be found possessed of 

 different degrees of virulence. The question as to the identity 

 of the organisms isolated from cases of swine plague and from 

 those of chicken cholera and the other diseases mentioned is 

 difficult to answer. It seems well until the results of further 

 investigations are recorded to look upon these bacteria as 

 belonging to one group, but that for the present the organisms 

 isolated from the different diseases should retain their original 

 separate designations. Although the organisms from these 



1 Lignieres. Ann. de 1'Inst. Pasteur, Vol. XV (1901) p. 734. 



2 Moore. Bulletin No. 3. B. A. I., U. S. Dept. Agric., 1895. 



3 King. Loc. cit. 



