PATHOGENIC BACTERIA. 



241 



Cole* has shown that this is not the specific organism for 

 acute articular rheumatism. 



From a point where there is suppuration or other locaKzed 

 infection, pyogenic bacteria may enter the circulation and 

 become widely disseminated throughout the body. That hap- 

 pens very commonly in mahgnant endocarditis. In this man- 

 ner secondary or metastatic abscesses may be produced in 

 the most diverse organs. 



Fig. 60. — Staphylococcus Pyogenes Aiteeus, Pure Culttjre. 

 (X 1000.) 



The term pyemia is used to describe the dissemination of 

 pyogenic bacteria in the circulating blood, with the formation 

 of metastatic abscesses. 



Staphylococcus pyogenes aureus. — ^A micrococcus of 

 variable size, arranged in irregular clumps, sometimes in pairs; 

 about 0.8 to 0.9 /i in diameter; not motile (Fig. 60). It stains 



* Cole. Experimental Streptococcus Arthritis in Relation to the Etiology 

 of Acute Articular Rheumatism. Journal of Infectious Diseases. Vol. I. 

 No. 4. Nov. 5, 1904. P. 714. 



