1970
DOI: 10.1128/aem.20.3.447-451.1970
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Stability of Antibiotics and Chemotherapeutics in Agar Plates

Abstract: The stability of chemotherapeutic agents incorporated into agar plates was studied by comparison of minimum inhibitory concentrations on fresh and stored plates and by direct bioassay of the chemotherapeutic agar plates. Plates were stored in sealed bags at 4 C. No loss of bioactivity was demonstrated after 30 days of storage in plates containing methicillin, erythromycin, cephalothin, tetracycline, chloramphenicol, kanamycin, streptomycin, polymyxin B, or nalidixic acid. Penicillin G, ampicillin, and nitrofur… Show more

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Cited by 26 publications
(26 citation statements)
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“…Drug sensitivity tests are routinely performed in the clinical laboratory by a number of methods such as the disk diffusion and drug dilution techniques (2,3,8,11). In disk diffusion methods the tests are reported in qualitative terms, whereas the results of drug dilution tests are reported quantitatively.…”
mentioning
confidence: 99%
“…Drug sensitivity tests are routinely performed in the clinical laboratory by a number of methods such as the disk diffusion and drug dilution techniques (2,3,8,11). In disk diffusion methods the tests are reported in qualitative terms, whereas the results of drug dilution tests are reported quantitatively.…”
mentioning
confidence: 99%
“…Mycobacterium tuberculosis (MTB) is a pathogenic bacterial species in the genus Mycobacterium and the causative agent of most cases of tuberculosis (TB) [Ryan and Ray, 2004] Consumption, phthisis, scrofula, Pot's disease, and the White Plague are all terms used to refer to tuberculosis throughout history. It is generally accepted that the microorganism originated from other, more primitive organisms of the same genus Mycobacterium.…”
Section: History Of Tuberculosismentioning
confidence: 99%
“…There can only be one copy of the F-plasmid in a given bacterium, either free or integrated, and bacteria that possess a copy are called F-positive or Fplus. Cells that lack F plasmids are called F-negative or F-minus and as such can function as recipient cells [26] [29].…”
Section: Bacterial Conjugationmentioning
confidence: 99%