Typing Group a Hemolytic Streptococci by M Precipitin Reactions in Capillary Pipettes
نویسندگان
چکیده
A method is described for performing type-specific anti-M precipitin tests on group A hemolytic streptococci in 1 mm. capillary pipettes. These tests require so much less precipitating serum than was formerly used that the method now seems to be practical.
منابع مشابه
New Approaches for the Laboratory Recognition of M Types of Group a Streptococci
The successful classification of Group A streptococci by the capillary precipitin technique requires a complete series of M type antisera which are sufficiently potent and specific to give unequivocal type-specific reactions with all the serotypes. Specific antisera for this purpose have been prepared by absorption with heterologous streptococci. Unabsorbed antisera have been employed here in t...
متن کاملTyping Group a Hemolytic Streptococci
Two methods of typing group A hemolytic streptococci have been described: slide agglutination and anti-M precipitin tests. The first, developed by Griffith (1), is more extensively used. I t has the distinct advantages of requiring small amounts of serum and culture, and of a quick reaction time when all conditions are favorable. I t has certain disadvantages: The granular growth of some strain...
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ورودعنوان ژورنال:
- The Journal of Experimental Medicine
دوره 78 شماره
صفحات -
تاریخ انتشار 1943