1054 INFLUENCE OF INOCULUM SIZE ON INTERPRETATION OF SUSCEPTIBILITY TESTING OF HAEMOPHILUS INFLUENZAE: MOXALACTAM VS. AMPICILLIN
نویسندگان
چکیده
منابع مشابه
Effect of inoculum size on Haemophilus influenzae type b susceptibility to new and conventional antibiotics.
Thirty-three Haemophilus influenzae type b isolates, including beta-lactamase acetyltransferase-positive strains, were tested by microtiter broth dilution for susceptibility to eight beta-lactam compounds and chloramphenicol. All antibiotics except ampicillin and chloramphenicol were highly bactericidal against all isolates at an inoculum of 10(5) CFU/ml. However, at an inoculum of 10(5) CFU/ml...
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Sixty-seven clinical isolates of Haemophilus influenzae from various sections of the United States, England, and Germany were tested for susceptibility to penicillin, ampicillin, amoxicillin, epicillin, carbenicillin, ticarcillin, and methicillin. Fifty-three of the strains had previously been judged to be ampicillin resistant and 14 had been determined to be ampicillin susceptible. Fifty-two o...
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A total of 104 strains of Haemophilus influenzae isolated from pediatric patients over a 1-year period were tested for susceptibility to moxalactam (LY127935), ampicillin, chloramphenicol, and ticarcillin. Of these strains, 30 produced beta-lactamase. LY127935 inhibited 99% of the strains at a concentration of 0.125 microgram/ml; the remaining strain was inhibited by this antibiotic at 0.25 mic...
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Susceptibility testing of Haemophilus influenzae to the macrolide compounds has often been problematic. This is as a result of the inability of many isolates of H. influenzae to grow without the addition of 5% CO2 to the incubation atmosphere and the subsequent detrimental effect that CO2 has on the activity of the macrolide group of compounds. This report describes refinements and recommendati...
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ژورنال
عنوان ژورنال: Pediatric Research
سال: 1981
ISSN: 0031-3998,1530-0447
DOI: 10.1203/00006450-198104001-01080