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Response and effectiveness. Peak concentrations are usually seen within 1.5 hours of a dose of Augmentin; however, it may take up to 48 hours of dosing for a clinical improvement to be seen. Effective against more organisms than amoxicillin by itself. What infections does Augmentin treat? Augmentin (amoxicillin/clavulanate) is aRead More →

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Cell structure and metabolism Staphylococcus aureus is a gram-positive bacteria, which means that the cell wall of this bacteria consists of a very thick peptidoglycan layer. They form spherical colonies in clusters in 2 planes and have no flagella. Which bacteria are always non-motile? Coliform and Streptococci are examples ofRead More →

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STAPHYLOCOCCUS IS IDENTIFIED AS A CAUSE of wound infection by the Scottish surgeon Sir Alexander Ogston, who named it for the grape-like clusters (in Greek, staphyle) he observed under the microscope. STAPHYLOCOCCUS AUREUS IS ISOLATED BY German scientist Anton Rosenbach, who grows the two strains, S. When was the firstRead More →

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The coumarin novobiocin is produced by Streptomyces (S. niveaus and S. spheroides), and its main targets are gram-positive bacteria. It acts by inhibiting the bacterial gyrase activity. Is Staphylococcus epidermidis sensitive to novobiocin? It is sensitive to novobiocin, providing an important test to distinguish it from Staphylococcus saprophyticus, which isRead More →

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The catalase test is primarily used to distinguish among Gram-positive cocci. Members of the genus Staphylococcus are catalase-positive, and members of the genera Streptococcus and Enterococcus are catalase-negative. 1. What organisms are beta hemolytic? Beta Hemolytic Streptococcus Rheumatic Fever. Cellulitis. Protein. Penicillin Derivative. Pharyngitis. Streptococcus. Staphylococcus Aureus. Bacterium. Can staphRead More →

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The treatment of choice for S. aureus infection is penicillin. In most countries, S. aureus strains have developed a resistance to penicillin due to production of an enzyme by the bacteria called penicillinase. What kind of bacteria does levofloxacin treat? Levofloxacin (Levaquin) is a fluoroquinolone antibacterial agent with a broadRead More →

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β-Lactam antibiotics. Penicillin-resistant strains of Staphylococcus aureus emerged shortly after the introduction of the antibiotic in the early 1940s (Lowy 2003; Peacock and Paterson 2015; Walsh 2016). Does Staphylococcus aureus require antibiotics? aureus infections (such as pneumonia or bloodstream infections) typically require hospitalization and treatment with intravenous antibiotics. What killsRead More →