The Staphylococcus aureus‚ a bacteria that is found in the nose‚ has been a leading cause of infection in hospitals around the world. This is an antibiotic-resistant‚ nosocomial pathogen‚ meaning that it’s acquired at hospitals. To test the idea that these infections have increased‚ eight hospitals participated in a study within the New York Area. The following are hospitals participated in this study: VA hospital‚ Kings County Hospital‚ Columbia University Medical Center‚ New York-Presbyterian Queens
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-Unknown Mixtures Lab- Purpose: The aim of this experiment was to find out the two substances of the unknown mixture from salt‚ sugar‚ dirt‚ and baking soda by looking at its properties. Hypothesis: Find the unknown substance by testing it out by heating it‚ pouring water‚ vinegar‚ and observing it . Procedure: 1) Materials- * 100ml of water * Vinegar * Bunsen Burner * 2 beakers * 1 spatula 2) First‚ do steps (3-6)to find out the properties of salt‚ sugar
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followed by the specific epithet EX) Escherichia coli and Staphylococcus aureus are found in the human body. E. coli is found in the large intestine‚ and S. aureus is on skin Scientific names can describe an organism‚ honor a researcher‚ or identify the habitat of a species EX) Staphylococcus aureus - staphylo- describes the clustered arrangement of the cells; coccus indicates that they are shaped like spheres; aureus describes the golden-colored colonies EX) Escherichia coli – honors the discoverer
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cystic fibrosis prone to infections with Pseudomonas aeruginosa? Pseudomonas aeruginosa is an opportunistic infection that usually does not affect healthy patients‚ but is particularly detrimental in patients with cystic fibrosis. This is because they are antibiotic resistant to a certain extent. Paired with this‚ patients with cystic fibrosis have a decreased ability to produce mucous membranes‚ making it easier for biofilms associated with P. aeruginosa (Lyczak et al 2002). This along with their seemingly
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wearing gloves 2: Appropriate for working with human body fluids. Autoclave‚ sharps containers‚ lab coats 3: appropriate for working with pathogens that can be transmitted via respiratory route. Self-closing‚ double doors and sealed windows 4: Highest level. Aerosol pathogens; pathogens with no vaccine/treatment. Separate building with separate ventilation and waste management systems Bacteria used in lab is classified as Class 1 by US Public Health Service/Biosafety Level 2 Review everything about
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Microorganisms are classified according to their structure. By means of flow charts‚ diagrams and tables explain the differences between Viruses‚ Bacteria‚ Cyanobacteria‚ Achaea and Fungi. Bacteria or bacterium are unicellular microorganisms. They are essentially only a few micrometres long and form of various shapes including the spheres‚ rods and spirals. A BACTERIAL CELL Illustration courtesy of Wikipedia. A Virus (from the Latin noun virus‚ meaning toxic or poison) is a sub-microscopic
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Figure 1 Figure 2 Figure 3 Figure 1 show the crystallisation reaction when the saturated sodium chloride solution was added to the cool reaction mixture. The salt of p-Toluenesulphonic acid started forming. Figure 2 show the wet crystal after the precipitated salt was being filtered by suction. The wet crystal was light purple in colour. Figure 3 show the end product after drying the wet crystal at 105°C in the drying
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A medical microbiology lab performs testing on human samples collected from different body sites. The tests are used to detect and identify any microorganisms capable of causing disease. Knowing of unknown microorganism is important on how this microorganism works and how it is structured‚ means knowing how it can affect humans. The purpose of this study was to identify an unknown bacterium by applying all methods that were previously conducted and learned in the medical microbiology laboratory
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Questions 1. Which type of S. pneumoniae strain is the most virulent‚ encapsulated or unencapsulated? 2. What allows S. pneumoniae to adhere to cell walls‚ phosphorylcholine or polysaccharide? 3. Which infections are most commonly caused by S. pneumoniae‚ arthritis & peritonitis or meningitis & bacteremia? both 4. What can society do to help protect itself from antimicrobial resistance‚ increase or decrease antimicrobial usage? Decrease usage 1. Staphylococcus aureus‚ the bacteria that
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to stain everything other than the bacteria. The Gram stain is one of the oldest‚ most cost-efficient‚ yet most under-utilized‚ staining method used to identify bacteria. It consists of a basic dye (the primary stain crystal violet)‚ a mordant (Gram ’s iodine)‚ decolorizer (acetone:alcohol) and a counter stain (safranin). A mordant is a compound which helps hold the primary stain to the bacteria. In this case‚ the iodine forms a complex with the crystal violet to "lock it into" the cell wall/membrane
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