THE CLASSIFICATION OF HEMOLYTIC STREPTOCOCCI
نویسندگان
چکیده
منابع مشابه
The Classification of Hemolytic Streptococci
1. The hemolytic variety of streptococcus is homogeneous, consisting of members that are nearly identical. 2. This homogeneity is most strikingly displayed in the behavior of these streptococci in the complement fixation reaction, all the strains studied reacting in a nearly identical way with all the antisera.
متن کاملA Classification of Non-hemolytic Streptococci
1. No connection can be demonstrated between grouping of non-hemolytic streptococci based upon fermentation reactions, and grouping based upon immunological reactions. 2. A classification of non-hemolytic streptococci can be effected by studying the complement fixation reactions between the streptococci and their antisera. 3. The arrangement of the streptococci in such a classification depends ...
متن کاملA Classification of Non-hemolytic Streptococci. by Ralph
No group of bacteria has been suspected of etiologic relationship with so many and diversified disease processes as the streptococcus. At the same time there is no group which suffers more confusion hi the relationship of its numerous members. The purpose of the present work was t o at tempt a classification of twenty-eight strains of non-hemolytic streptococci by a comparative study of their b...
متن کاملThe Conversion of Hemolytic Streptococci to Non-hemolytic Forms
From one strain of hemolytic streptococcus three forms were isolated, which produced three different degrees of hemolysis on the surface of blood agar in the presence of oxygen. The original form was moderately hemolytic; the glossy variant was more hemolytic than the original form; and the third form, obtained by passing the original culture through mice, was non-hemolytic. Under anaerobic con...
متن کاملThe preventive effect of Chlorhexidine mouthwash on alpha-hemolytic Streptococci and Staphylococcus aureus
Background and objectives: The association of oral micro-organisms with infectious diseases such as bacterial endocarditis is a concern in dentistry. Bacterial endocarditis is a serious disease with a mortality rate of 40%. The present study was conducted to investigate the effect of using chlorhexidine mouthwash on concentrations of some groups of bacteria in gingival sulcus, which is the main...
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ژورنال
عنوان ژورنال: Journal of Experimental Medicine
سال: 1918
ISSN: 1540-9538,0022-1007
DOI: 10.1084/jem.28.2.169