In vitro activity of sulbactam/ampicillin and ampicillin against methicillin-sensitive and methicillin-resistant Staphylococcus aureus and Staphylococcus epidermidis.
{"title":"In vitro activity of sulbactam/ampicillin and ampicillin against methicillin-sensitive and methicillin-resistant Staphylococcus aureus and Staphylococcus epidermidis.","authors":"A Fabbri, A Tacchella, M L Belli, G Losurdo","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>Minimum inhibitory concentrations (MICs) of ampicillin and ampicillin + sulbactam (1:1) against 165 strains of Staphylococcus aureus and 72 strains of Staphylococcus epidermidis have been evaluated. The activity of the combination was very good. A concentration of 16 micrograms/ml + 16 micrograms/ml inhibited 96.9% of S. aureus and the 100% of S. epidermidis strains (at the same concentration ampicillin alone inhibited only 55.15% and 56.9% of S. aureus and S. epidermidis strains respectively). Activity against methicillin-resistant S. aureus (14.5%) was poor, whereas against methicillin-resistant S. epidermidis (67.2%) the combination maintained high efficacy.</p>","PeriodicalId":9733,"journal":{"name":"Chemioterapia : international journal of the Mediterranean Society of Chemotherapy","volume":"7 5","pages":"306-8"},"PeriodicalIF":0.0000,"publicationDate":"1988-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemioterapia : international journal of the Mediterranean Society of Chemotherapy","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
Minimum inhibitory concentrations (MICs) of ampicillin and ampicillin + sulbactam (1:1) against 165 strains of Staphylococcus aureus and 72 strains of Staphylococcus epidermidis have been evaluated. The activity of the combination was very good. A concentration of 16 micrograms/ml + 16 micrograms/ml inhibited 96.9% of S. aureus and the 100% of S. epidermidis strains (at the same concentration ampicillin alone inhibited only 55.15% and 56.9% of S. aureus and S. epidermidis strains respectively). Activity against methicillin-resistant S. aureus (14.5%) was poor, whereas against methicillin-resistant S. epidermidis (67.2%) the combination maintained high efficacy.
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