The Staphylococcus Aureus Bacterium

This experiment was conducted to first, determine if Staphylococcus is present in the nose cavity. Staphylococcus is very common in in the nasal cavities and therefor its highly likely that some type of Staphylococcus will be detected. In order to detect the presence of Staphylococcus a nose swab will be taken and incubated at 37.0˚C for 48hrs in a (m-G+C) broth. This broth has a 10% salt concentration and as Staphylococcus is a halophile and requires salt to flourish, the salt concentration in this broth will help to enable an ideal environment for the Staphylococcus. After the 48hrs a Mannitol Salt agar plate will be inoculated by the swab and then incubated for at the same temperature and length of time as before. The MSA plate, which contains sugars and salts will

Methicillin-resistant Staphylococcus aureus, or MRSA, is a bacterium that is resistant to many available high- level beta-lactam antibiotics, which include penicillins, “antistaphylococcal” penicillins and cephalosporins. Staphyloccoci are the most important bacteria that cause disease in humans. MRSA is sometimes branded as a nosocomial infection as it usually plagues patients that are receiving treatment in a hospital. The skin is the most common site of infection, where MRSA can cause cellulitis, folliculitis, or boils in the skin, but can also commonly be found in the nose, underarm, groin, upper respiratory tract, intestine, vagina and rectal areas of the body. MRSA infections occur with there is a break in the skin that allows the Methicillin resistant

Staphylococcus aureus is the leading cause of skin and soft tissue infections, it can cause serious infections such as bloodstream infection, pneumonia or bone infections. Though it can cause infections it is part of the normal human flora it is mostly found on the skin or in nasal cavities. It is a facultative anaerobic gram positive cocci, it is usually in pairs or clusters. The bacterium is also catalase positive, oxidase

MRSA stands for Methicillin-safe Staphylococcus aureus. MRSA is a bacteria that is very hard to treat that infections in animals’ and humans body. MRSA was initially reported in 1961 when a researcher found it and the first case was in 1968. It's impervious to a gathering of anti-infection agents which incorporate methicillin and this is the explanation why it's hard to treat. "Staphylococcus" is comprised of two Greek components. The main component, which is "staphule," implies a pack of grapes and the second component "kokkos" means berry. The two Greek components consolidate to frame the current Latin word "staphylococcus." "Aureus" is characterized as golden. Staphylococcus aureus is a circular bacterium yet that is not by any means

This paper explores the study of an unknown bacterial culture. The bacterium were randomly assigned in a double blinded fashion to alleviate scientific or experimental error in determining their gram stain, morphology, arrangement, and scientific classification. There were eight unknown bacterial cultures given, with the unknown bacterial culture being one of the eight bacterial cultures. A myriad of tests and experiments were performed on the unknown bacteria in order to be able to properly classify it. One of the first experiments that was performed was the gram stain. It was determined to be gram positive. The arrangement of the unknown bacteria was also noted on the gram positive slide. The slide showed grape like

This particular organism, S. aureus is a Gram + cocci, under the microscope it looks like purple grape-like clusters. A distinguishing feature of S. aureus is that it ferments glucose and in addition it can inhabit a salty environment like our skin. A Bromocresol purple glucose test that tests for glucose fermentation can be performed. The glucose fermentation will cause the pH of the indicator to decrease causing a yellow, positive result. This is important, as this is a way to differentiate S. aureus from Micrococci which is another salt tolerant skin flora. Micrococci does not ferment glucose and will remain

Staphylococcus aureus is a gram positive bacterium. It is accountable for numerous conditions when it crosses the threshold into the human body. The bacterium may also be referred to as a ‘Staph infection’. There are more than 28 different types of staphylococcus aureus that are responsible for cellulitis, blood poisoning, and various others. Methicillin resistant Staphylococcus aureus is also a type of staphylococcus aureus. Staph infections are curable with different antibiotics.

Staphylococcus aureus is a cluster bacterium that can be found on the skin of around 25% of healthy adults. This bacterium is growing everyday all over the world and many people have no idea they are even carriers. “Staphylococcus aureus is present in the nose of adults (temporarily in 60% and permanently in 20 to 30%) and sometimes on the skin” (Levison). This bacterium has the ability to cause skin infection and sometimes may lead to severe life threatening diseases. There are several different strains of staphylococcus and depending on the severity of the infection is how a health care provider decides the treatment most efficient. Impetigo is more common in children, but adults still have the chance of getting this skin condition. Toxic Shock Syndrome is also associated with S. aureus and is found in at least 50% of the cases to date. S. aureus can display a variety of symptoms and all vary with the disease at hand. Symptoms can range from a boil on the skin or in the nose to skin rashes. More severe symptoms can be carbuncles and infection of the blood (sepsis).Staphylococcus aureus is an ugly bacterium; that can lead to several diseases, such as Toxic Shock Syndrome and Impetigo. S. aureus has multiple symptoms and is treated with a variety of antibiotics.

Staphylococcus aureus is a Gram-positive coccal bacterium which is estimated to have colonised 20-30% of the human population.1,2,3 S. aureus is normally found in the anterior nares and mucous membranes of these individuals. For the majority, this is not a problem as these people are colonised, not infected.2,3 However S. aureus is an opportunistic pathogen and if it contaminates a breach in the skin or mucous membranes, it can go on to infect any tissue in the body.3 Infection may lead to serious life threatening diseases such as pneumonia.4 Over time strains of S. aureus were able to develop resistance to antibiotics, resulting in strains known as methicillin resistant Staphylococcus aureus (MRSA).

The shape of the S. aureus is a Gram-positive spherical bacterium that occurs in grape like clusters, which are golden. The golden color is the result of a carotenoid pigment that protects the bacteria against host-immune system reactive oxygen species, and adds to the bacteria's virulence. Staphylococcus aureus is a gram-positive bacterium, which means that the cell wall of these bacteria consists of a very thick peptidoglycan layer. Whereas NM is a gram-negative, coffee bean shaped aerobe bacterium. The bacterium

Staphylococcus aureus is a specific type of bacteria which is a member of the Staphylococcaceae family (Medical News, 2016). The bacteria is found in clusters (staphylo-) which look like grapes and as a result is called Staphylococcus. Staph is Gram positive (which is a method for identifying bacteria) and is non-moving (Medical News, 2016). It can infect all mammalian species and because it can infect such a broad range of mammals it is easily transmitted from one species to another species. Of special concern is methicillin-resistant staphylococcus aureus (MRSA) which does not respond to antibiotics.

Staph infection comes in different types and may cause disease due to direct infection or production of toxins by the bacteria. Boils, impetigo, food poisoning, cellulitis, and toxic shock syndrome are all examples of diseases that can be caused by Staphylococcus [2]. MRSA is a form of bacterial infection that is resistant to numerous antibiotics including methicillin, amoxicillin, penicillin and oxacillin, thus making it challenging to treat the infection [3].

Life 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, but can also survive in a wide variety of locations in the body. This bacterium is spread from person to person or to fomite by direct contact. Colonies of S. aureus appear in pairs, chains, or clusters. S. aureus is not an organism that is contained to one region of the world and is a universal health concern, specifically in the food handling industries.

MRSA stands for Methicillin-resistant Staphylococcus aureus and is a bacteria that causes infectious open wounds on the skin. MRSA is particularly dangerous because it is resistant to most types of antibiotics, and is easily transmittable throughout the general public. There are two types of MRSA: HA-MRSA: which is healthcare-associated MRSA; and CA-MRSA: which is community-associated MRSA. The signs, symptoms, and treatment are all similar between the two different types of MRSA (“MRSA Overview,” 1995). While resistant to most antibiotics, there are treatment options, however, prevention is the most important step.

S. aureus usually exists in a commensal relationship with humans and is considered to be part of normal flora. S. aureus was first identified in the 1880s, and it was able to induce a contagious skin infection which could develop into bacterial pneumonia or sepsis. In the 1940s, the standard treatment for Staphylococcus aureus was penicillin. During the 1940s, Staphylococcus aureus was consistently responsive towards penicillin (Walters,2015). The amplified use of penicillin encouraged the evolution of Staphylococcus aureus to become resistant to penicillin during the late 1940s and into the 1950s (History,2016). The lessened impact of penicillin led to the demand for Methicillin, the first semisynthetic antistaphloccal penicillin, which was introduced in 1959 (Carrel,2015). Methicillin was originally marketed as “Celbenin.” In October of 1960, Dr. Patricia Jevons of the Staphylococcus Reference Library in London, isolated four colonies of methicillin-resistant Staphylococcus aureus. Dr. Jevon isolated these methicillin-resistant Staphylococcus aureus strains less than 2 years after methicillin became available (Jevons,1961).