Tests of sensitivity of staphylococci to methicillin.
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the washback effect of discretepoint vs. integrative tests on the retention of content in knowledge tests
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15 صفحه اولUse of polyvinylpyrrolidone in the testing of staphylococci for sensitivity to methicillin and cephradine.
The use of polyvinylpyrrolidone, an inert polymer resembling plasma proteins in its colligative effects, in the testing of micrococcaceae for sensitivity to methicillin and cephradine is described. Generally results are quite comparable with those of conventional methods. The absence of any inhibitory effect of the polymer compared to sodium chloride, and its physiological inertia compared to s...
متن کاملCharacteristics of Methicillin-resistant Staphylococci.
Sutherland, R. (Beecham Research Laboratories Ltd., Betchworth, Surrey, England), and G. N. Rolinson. Characteristics of methicillin-resistant staphylococci. J. Bacteriol. 87:887-899. 1964.-Cultures of naturally occurring methicillin-resistant staphylococci obtained from a number of hospitals were examined for the nature and degree of resistance to methicillin and other antibiotics. All the cul...
متن کاملMethicillin-resistant staphylococci.
Strains of staphylococci resistant to methicillin were identified immediately after introduction of this drug. Methicillin-resistant strains have unusual properties, the most notable of which is extreme variability in expression of the resistance trait. The conditions associated with this heterogeneous expression of resistance are described. Methicillin resistance is associated with production ...
متن کاملMethicillin-resistant staphylococci.
Eighteen strains of Staph. pyogenes (nine penicillin-sensitive and nine penicillin-destroying) were passaged 40 to 50 times on Celbenin(1) ditch plates. All strains developed an increase in resistance to Celbenin and eight strains (four penicillin-sensitive and four penicillin-destroying) were able to grow in 100 mug/ml. or more Celbenin. Resistance was of the drug-tolerant type and none of the...
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ژورنال
عنوان ژورنال: BMJ
سال: 1973
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.1.5847.230-a