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A MANUAL OF BACTERIOLOGY 



T PERITONITIS. Treves gives the following Table of the micro- 

 organisms found in peritonitis : 



Dudgeon 1 believes the B. coli is frequently a secondary agent and 

 not the primary infection. He finds that the M. pyogenes, var. 

 albus, is very commonly present from the first, and may exert a 

 protective action by determining the occurrence of phagocytosis. 



PSILOSIS OR SPRUE. Carnegie Brown 2 considers this disease to 

 be due to an abnormal fermentation in the intestine brought about 

 by some organism, bacterial or protozoan, which has not yet been 

 isolated. 



PUERPERAL FEVER. This condition may be either a localised 

 infection with intoxication (sapraemia), or a localised infection with 

 general infection (puerperal septicaemia) ; in both the primary 

 seat of infection may be perinseal or vaginal lacerations, or the 

 contents of the uterus or the placental site. The infecting organisms 

 may be S. pyogenes, pure (20 per cent.), or with other organisms 

 (30 per cent.), occasionally the S. pneumonia?, B. coli, M. pyogenes, 

 var. albus, M. pyogenes, var. aureus, M. gonorrhoea?, B. Welchii, 

 and diphtheroid bacilli. These are rarely alone, but generally occur 

 with one or other of the organisms named. The B. diphtheria? may 

 exceptionally be met with. 3 



PURPURA. Hsemorrhagic septicaemia may be caused by a number 

 of capsulated bacilli allied to the B. pneumonia? of Friedlander * 

 (see pp. 258, 404), as well as by streptococci and pyogenic cocci. 

 Paratyphoid infection may be accompanied with purpura. 



1 Bacteriology of Peritonitis (Constable, 1905). 



2 Sprue and its Treatment (Bale, Sons, & Danielsson, 1908). 



3 See Foulerton, Practitioner, March, 1905, p. 387. 



* See Howard, Journ. Exp. Med., vol. iv, 1899, p. 149 (Bibliog.). 



