MICROBIAL DISEASES OF MAN AND DOMESTIC ANIMALS 785 



Botryomycosis is easily distinguished from actinomycosis on 

 microscopic examination. Cases that resemble the farcy form of glan- 

 ders are easily distinguished by mallein test, by laboratory animal in- 

 oculation and by lack of adjacent lymph-gland involvement. 



GONORRHOEA* 

 Micrococcus gonorrhcea 



Gonorrhoea is one of the most prevalent of the bacterial diseases and 

 is found throughout the civilized world and is confined to the human 

 race. 



The urogenital tract is the most frequent seat of infection but 

 orchitis, conjunctivitis, and arthritis are not uncommon and endo- 

 carditis and a septicaemic condition may also occur. Ophthalmia 

 neonatorum is due to this organism. The ordinary infections of the 

 urogenital tract have an incubation period of from two to eight days. 

 The inflamed mucous membranes give rise to more or less pain and yield 

 a thick yellow discharge. 



FIG. 166. Gonococci and pus cells. X 1000. (After Williams.'} 



While the fatality due directly to Gonococcus infection is not high, 

 the frequent tendency to chronicity and its connection with blindness 

 and sterility render it one of the most important diseases. 



* Prepared by Edward Fidlar. 

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