Staphylococcus Aureus Is Bacteria Species Characterized By - amazonia.fiocruz.br

Staphylococcus Aureus Is Bacteria Species Characterized By - consider

The pathogen that causes Staphylococcus is called Staphylococcus aureus. Staphylococcus aureus is also called Staph and is abbreviated to S. Depending on the type of strain S. Microbiology, Some strains produce an enterotoxin that causes staphylococcus aureus gastroenteritis, also known as food poisoning. The most harmful species of S. Microbiology, Each year, approximately half a million people are admitted to a hospital in the U. It is also possible to transmit through indirect contact i. Staph infections are common hospital-acquired infections due to the possibility of health care providers being carriers of this, usually harmless, bacteria. A carrier of S. Skin to skin contact is the most significant mode of transmitting the pathogen and hand washing can significantly reduce transmission. Staphylococcus Aureus Is Bacteria Species Characterized By.

Staphylococcus aureus is a Gram-positiveround-shaped bacterium that is a member of the Firmicutesand it is a usual member of the microbiota of the body, frequently found in the upper respiratory tract and on the skin. It is often positive for catalase and Specie reduction and is a facultative Staphylococcus Aureus Is Bacteria Species Characterized By that can grow without the need for oxygen. Pathogenic strains often promote infections by producing virulence factors such as potent protein toxinsand the expression of a cell-surface protein that binds and inactivates antibodies. The emergence of antibiotic-resistant strains of S. Despite much research and developmentno vaccine for S. It is still one of the five most common causes of hospital-acquired infections and is often the cause of wound infections following surgery.

Each year, aroundpatients in hospitals of the United States contract a staphylococcal infection, chiefly by S. InSir Alexander Ogstona Scottish surgeon, discovered that Staphylococcus Speciez cause wound infections after noticing groups of bacteria in pus from a surgical abscess during a procedure he was performing.

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He named it Staphylococcus after its clustered appearance evident under a microscope. Then, inGerman scientist Friedrich Julius Rosenbach identified Staphylococcus aureusdiscriminating and separating it from Staphylococcus albusa related bacterium. In the early s, doctors began to use a more streamlined test to detect the presence of an S. Prior to the s, S. However, doctors discovered that the use of penicillin could cure S. Unfortunately, by the end of the s, penicillin resistance became widespread amongst this bacterium population and outbreaks of the resistant strain began to occur. Staphylococcus aureus can be sorted into ten dominant human lineages. There are numerous minor lineages as well, but these are not seen in the population as often.

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Genomes of bacteria within the same Characterizrd are mostly conserved, with the exception of mobile genetic elements. Mobile genetic elements that are common in S. These elements have enabled S. There is a great deal of genetic variation within the S. A study by Fitzgerald et al. An example of this difference is seen in the species' virulence. Only a few strains of S. This demonstrates that there is a large range of infectious ability within the species.

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It has been proposed that one possible reason for the great deal of heterogeneity within the species could be due to its reliance on heterogeneous infections. This occurs when multiple different types of S. The different strains can secrete different enzymes or bring different antibiotic resistances to the group, increasing its pathogenic ability.

Another notable evolutionary process within the S. Over time, this parasitic relationship has led to the bacterium's ability to be carried in the nasopharynx of humans without causing symptoms or infection. This allows it to be passed throughout the human population, increasing its fitness as a species. This leads scientists to believe that there are many factors that determine whether S.]