Natural Occurrence of Hemolytic Streptococci in Normal School Children
نویسندگان
چکیده
منابع مشابه
The Lancefield Groups of Hemolytic Streptococci Found in Children *
In a recent paper Boisvert,' reports that of 509 strains of Streptococcus hemolyticus isolated from 262 cases of streptococcal disease and grouped by means of the precipitin test, all fell into Lancefield's Group A; all of these cases were infants and children. Our own work has been along similar lines and was planned as a further test of the striking relationship between Group A streptococci a...
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Enuresis, while not a serious disorder in the sense of disabling the affected individual physically, nevertheless often causes great mental suffering and anxiety to both the enuretic child and his parents. The evidence from the majority of studies has shown that enuresis is a rather frequent disorder in children. Comprehensive bibliographies are found in papers by, inter alia, Zappert, Andersso...
متن کاملThe 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 کاملThe Occurrence of Mucoid Polysaccharide in Hemolytic Streptococci of Human Origin
1. A rapid method for the roughly quantitative estimation of mucoid polysaccharide in hemolytic streptococci has been described. 2. Using this method, about 94 per cent of strains from moderate or severe streptococcal infections in man have been found to produce mucoid polysaccharide in greater or less amount. In a group of streptococci from normal throats only about 8 per cent produced this su...
متن کاملThe Occurrence of Nucleases in Culture Filtrates of Group a Hemolytic Streptococci
1. All of the thirty-six strains of group A hemolytic streptococci tested were found to elaborate ribonuclease and desoxyribonuclease during growth in liquid cultures. Both enzymes are released into the medium. 2. Desoxyribonuclease is consistently produced in greater amount than ribonuclease. The concentration of desoxyribonuclease in the culture increases logarithmically during active growth ...
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ژورنال
عنوان ژورنال: American Journal of Public Health and the Nations Health
سال: 1957
ISSN: 0002-9572
DOI: 10.2105/ajph.47.8.995