Staphylococcus aureus Essay -- Essays Papers

staphylococcus aureusLife History and Characteristics Staphylococcus aureus is a gram positive bacterium that is usually found in the nasal passages and on the skin of 15 to 40% of healthy humans, except elicit also survive in a wide renewing of locations in the body. This bacterium is spread from person to person or to vehicle by direct contact. Colonies of S. aureus appear in pairs, chains, or clusters. S. aureus is not an beingness that is contained to one region of the world and is a universal health tint, specifically in the provender handling industries.Diseases The intimately common health concern associated with S. aureus is nutrient poisoning caused by the release of enterotoxins, even in smaller doses, into food. Release of less than 1 microgram of toxin is sufficient to contaminate food enough to illicit symptoms of food poisoning. The infective dose of toxin is generally introduce when food is contaminated with an excess of 100,000 bacteria per gram of food. T he intensity and mixed bag of symptoms resulting from S. aureus food poisoning differ from individual to individual, but some of the well-nigh common symptoms be nausea, vomiting, abdominal cramping, and prostration (complete physical or intellectual exhaustion). It usually takes 2 or 3 days to recover from S. aureus food poisoning, but in some instances individuals will require more cadence to fully recover.Even though S. aureus is mainly associated with food poisoning, the bacterium can penetrate the skin or other mucous membranes to invade a range of tissues which will cause a variety of transmission systems. Superficial infection of the skin can cause boils, impetigo, styes (infection of the glands or hair follicles of the eyelids), folliculitis, and furnacles. All of these infections argon charac... ...ood to above 60 degrees C and storing food below 7.2 degees C are two effective ways of controling S. aureus growth in food. The most classic recent epidemiological infor mation concerning this organism involves the increasing resistance to antibiotics. Methicillin-resistant S. aureus (MRSA) is the most common of these antibiotic resistant organisms. The effects of MSRA are the same as any other S. aureus infection, however, MSRA infections are a difficult to treat because in that respect are few effective antibiotics available. MSRA infections are generally not intent threatening, however in some extreme cases death can occur.References http//www.cdc.gov/ncidod/ coxa/Aresist/mrsa.htmhttp//www.bact.wisc.edu/Bact330/lecturestaphhttp//vm.cfsan.fda.gov/mow/chap3.htmlhttp//www.bacteriamuseum.org/species/staphaureus.shtmlhttp//www.dermnetnz.org/index.html