منابع مشابه
The Routine Preparation of Scarlet-fever Toxin of High Value
A NUMBER of attempts have been made in recent years to improve the quality of scarlet fever toxin, of which the most noteworthy is that of Hooker et al. (1933), who by a special technique obtained toxin with a value of 500,000 skin test doses per c.c. For some time past, however, the routine toxins prepared in this laboratory have been of considerably greater potency than those described by the...
متن کاملThe pyrogenic effect of scarlet fever toxin. IV. Pyrogenicity of strain C 203 U filtrate: comparison with some basic characteristics of the known types of scarlet fever toxin.
The pyrogenic activity of scarlet fever toxin has been described a number of times. The "classic" toxin, prepared from the Dochez NY 5 strain, was found to have a double specificity, designed by Hooker and Follensby as "A" and "B".1 More recently, Watson has analyzed the antigenic components of this toxin and found a third type, which he has denoted "C"1.2 In working with a mutant strain of str...
متن کاملHeart Disease in Scarlet Fever
The association of scarlet fever and cardiac injury has been a subject of discussion for many years. There is wide diversity of opinion concerning the frequencv of the cardiac lesions and the role which scarlet fever plays in their etiology. McCollomtT found 254 instances of cardiac damage of various sorts in a series of IOOO cases. He noted endocarditis in 3 individuals and pericarditis in 5. ...
متن کاملThe Comeback of Scarlet Fever
Streptococcus pyogenes (group A Streptococcus, GAS) is arguably the clone (Tse et al., 2012; You et al., 2018). The emm12 type is not new most virulent of all clinically important streptococci with a propensity to cause severe invasive diseases, toxic shock syndrome, and immunopathological damages such as acute rheumatic fever. Since the 1980s, severe GAS infections such as necrotizing fasciiti...
متن کاملCardiac complications in scarlet fever.
Stegemann (1914) described pathological changes in the myocardium and nervous system of the heart. Siegmund (1931) found inflammation chiefly in the thebesian vessels. Brody and Smith (1936) found pathological changes in the heart of 90 per cent. of the fatal cases. They described three types of myocarditis: 1. Focal or diffuse interstitial myocarditis. 2. Arteritis or periarteritis of the smal...
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ژورنال
عنوان ژورنال: Journal of Hygiene
سال: 1943
ISSN: 0022-1724
DOI: 10.1017/s002217240001278x