In Vitro Susceptibility of Corynebacterium diphtheriae to Thirteen Antibiotics
نویسندگان
چکیده
منابع مشابه
Antibiotic susceptibility patterns of recent isolates of Corynebacterium diphtheriae.
A variety of factors which might affect zone sizes were studied with strains of Corynebacterium diphtheriae; a standard disc method for antimicrobial sensitivity testing was used. Moderate variations in inoculum size, inoculum preparation, and pH of Mueller Hinton agar (MHA) did not appreciably affect zone sizes. The addition of blood to MHA was necessary to insure the growth of all C. diphther...
متن کاملToxinogeny in Corynebacterium diphtheriae.
In 1951, Freeman made the remarkable discovery that nontoxinogenic Corynebacterium diphtheriae became toxinogenic2 after association with the lytic phage B, previously described by Toshach (1950). From lysates of nontoxinogenic, nonlysogenic C. diphtheriae, Freeman and Morse (1951) established, through the isolation of single cells, lysogenic strains which were toxinogenic. The lysogenic clones...
متن کاملNeuraminidase of Corynebacterium diphtheriae.
Neuraminidase activity has been found in a variety of strains of Corynebacterium diphtheriae, both toxinogenic and nontoxinogenic. The enzyme has been shown to be intracellular, possibly associated with the cytoplasmic membrane. Toxinogenic strains of the diphtheria bacillus, grown under conditions unsuitable for maximal toxin production, produce neuraminidase, and the enzyme has been purified ...
متن کاملScreening for Corynebacterium diphtheriae.
A throat swab from a 9 year old girl with pharyngitis yielded a non-toxigenic strain of Corynebacterium diphtheriae var mitis and Streptococcus group G. C pseudodiphtheriticum was isolated from the throats of two of her four brothers. In each case the isolate was sent to the reference laboratory before full identification. The growth was found to be mixed for one brother; the other isolate bein...
متن کاملSialidase (neuraminidase) of Corynebacterium Diphtheriae.
Warren, Leonard (National Institute of Arthritis and Metabolic Diseases, Bethesda, Md.) and C. W. Spearing. Sialidase (neuraminidase) of Corynebacterium diphtheriae. J. Bacteriol. 86:950-955. 1963.-The characteristics of a sialidase produced by Corynebacterium diphtheriae were studied. The enzyme was partially purified from preparations of diphtheria toxin on a column of Sephadex G-75. By this ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Applied Microbiology
سال: 1971
ISSN: 0003-6919
DOI: 10.1128/aem.21.3.548-549.1971