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S Aureus
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... This unknown microbe is Staphylococcus aureus. Staphylococcus aureus name originates from the Greek word staphyle, “a bunch of grapes,” referring to the composition of the bacteria as seen on stained smears, and aureus, “golden,” referring to the color of the S. aureus colonies. S. aureus can produce acid aerobically and anaerobically from glucose, lactose, maltose and mannitol. ... (Bergey’s Manual p. ... S. aureus is heat stable and hardy, meaning it is not easily destroyed by heat at normal cooking temperatures. S. aureus is often hemolytic on blood agar, referring to the ability of breaking down of red blood cells.
S. aureus colonize mainly in the nasal passages, but it may be found in other anatomical areas. Although many factors have been shown to strengthen S. aureus nasal colonization, nasal carriage alone does not cause outbreaks. S. aureus can live harmlessly on many skin surfaces, especially around the nose, mouth, genitals, and rectum. ... But when the skin is pierced and broken for any reason, the S. aureus bacteria can enter the wound and cause an infection. S. aureus is a major cause of hospital acquired (nosocominal) infection of surgical wounds and infections. Factors associated with nosocomial outbreaks of S. aureus include the overuse of antibiotic agents, ineffective hand washing, understaffing, and health care workers carrying the organism.
S. aureus can cause surface skin lesions such as boils, impetigo, and styes. ... S. aureus should always be considered a potential pathogen. S. aureus can also cause a wide range of pus-forming infections, as well as food poisoning and toxic shock syndrome. Symptoms of S. aureus food poisoning are usually rapid and in many cases serious, depending on the individuals response to the toxin, the amount of contaminated food eaten, the amount of food ingested, and the general health of the victim. ... S. aureus is often referred to as “staph”. ...
S. ... (Microbes and You pages 23 and 24) S. aureus is gram positive and its bacterial shape is cocci. ... If the medium turns yellow, the organism is probably S. aureus. ... S. aureus is gram positive. ... (Microbes and You page 41) S. aureus is not a nitrate producer. ... (Microbes and You page 48) S. aureus is acidic and has no gas production. ... (Microbes and You page 47) S. aureus does not produce the enzyme amylase that will hydrolyze starch. ... 50) S. aureus remains green. ...
S.
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Paper Information
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Title: S Aureus
Words: 2980
Rating: None
Pages: 11.9
submitted by: ndnrn2004
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