LESIONS IN THE HUMAN SUBJECT. 



159 



localised abscesses, in pustules on the skin, in carbuncles, 

 boils, etc., in acute suppurative periostitis, in ulcerative 

 endocarditis, and in various pyamic conditions. They may 

 also be present in septicaemia. 



Streptococci are especially found in spreading inflammation 

 with or without suppuration ; in diffuse phlegmonous and 

 erysipelatous conditions, suppurations in serous membranes 

 and in joints (Fig. 45). 

 They also occur in 

 acute suppurative 

 periostitis and ulcera- 

 tive endocarditis. 

 Secondary abscesses 

 in lymphatic glands 

 and in lymphangitis 

 are also, we believe, 

 more frequently 

 caused by strepto- 

 cocci than staphylo- 

 cocci. They also 

 produce fibrinous ex- 

 udation on the mucous 

 surfaces, leading to the 

 formation of false 

 membrane in many 



of the cases of non- diphtheritic inflammation ot the 

 throat, which are met with in scarlatina l and other con- 

 ditions, and they are also the organisms most frequently 

 present in acute catarrhal inflammations of this situation. 

 In puerperal peritonitis they are frequently found in a 

 condition of purity, and they also appear to be the most 

 frequent cause of puerperal septicaemia, in which condition 

 they may be found after death in the capillaries of various 

 organs, though examination of the blood during life usually 

 gives a negative result. In pyaemia they are frequently 



FIG. 45. Streptococci in acute suppuration. 

 Corrosive film ; stained by Gram's method 

 and safranin. x 1000. 



1 True diphtheria may also occasionally be associated with this disease, 

 usually as a sequel. 



