ANTIGENIC AND ENZYME SYSTEM CHANGES IN BETA HEMOLYTIC STREPTOCOCCI RESISTANT TO PENICILLIN, STREPTOMYCIN, BACITRACIN AND AUREOMYCIN 1234
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چکیده
منابع مشابه
Bacitracin and coagglutination for grouping of beta-hemolytic streptococci.
Bacitracin may be used for presumptive differentiation of group A from other beta-hemolytic streptococci. Whatever criteria are used for the test, a small number of erroneous results will be obtained. With the 1,161 strains studied in this laboratory, using a zone of 10 mm or greater as indicative of group A was better than using Maxted's original criterion of any zone of inhibition for group A...
متن کاملDifferentiation of group A from other beta hemolytic streptococci with bacitracin.
In the study of upper respiratory infections, nose and throat cultures for beta hemolytic streptococci3 are essential. Since group A streptococci are implicated in human respiratory infections more than other groups, it is important that streptococci recovered on culture be identified as belonging to group A or not. The finding of streptococci which belong to groups other than A in the nose or ...
متن کاملstability and attraction domains of traffic equilibria in day-to-day dynamical system formulation
در این پژوهش مسئله واگذاری ترافیک را از دید سیستم های دینامیکی فرمول بندی می کنیم.فرض کرده ایم که همه فاکتورهای وابسته در طول زمان ثابت باشند و تعادل کاربر را از طریق فرایند منظم روزبه روز پیگیری کنیم.دینامیک ترافیک توسط یک نگاشت بازگشتی نشان داده می شود که تکامل سیستم در طول زمان را نشان می دهد.پایداری تعادل و دامنه جذب را توسط مطالعه ویژگی های توپولوژیکی تکامل سیستم تجزیه و تحلیل می کنیم.پاید...
Suppurative pericarditis due to a penicillin- and streptomycin-resistant staphylococcus.
In spite of modern antibiotic therapy, suppurative pericarditis remains a serious condition and the mortality rate is still believed to be in the region of 50% (d'Abreu, 1953). Aird (1949) states that the mortality by aspiration alone is 100%, by operation alone 50%, but that the mortality from a combination of aspiration and penicillin replacement should be low providing the organism is sensit...
متن کاملPenicillin-resistant and penicillin-tolerant mutants of group A Streptococci.
Penicillin-resistant and penicillin-tolerant mutants have been isolated from group A streptococci mutagenized by ethyl methane sulfonate. The resistant mutants had an elevated minimal growth inhibitory concentration for benzylpenicillin (minimal inhibitory concentration, 0.2 microgram/ml, as compared with the minimal inhibitory concentration of 0.006 microgram/ml in the penicillin-susceptible p...
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ژورنال
عنوان ژورنال: Journal of Clinical Investigation
سال: 1949
ISSN: 0021-9738
DOI: 10.1172/jci102172