refrigerator should be set at 40 degrees Fahrenheit or lower, and the freeze temperature set at 0 degrees Fahrenheit. Many American are unaware of how long products such as fish, ground meats, and poultry can remain refrigerated or uncooked before bacteria starts to build. As a consumer, are you aware? The cdc.gov website is to freeze or cook these items within two days of purchase. On the other hand beef, lamb, pork, and veal can remain refrigerated a minimum of three to five days before cooking or
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Page 1 of 2 Pfizer and the Nigerian Trovan Suit There has been a controversy about the experimental testing of the drug Trovan (trovafloxacin), by Pfizer, a major pharmaceutical company. Pfizer held clinical trials of the drug in Kano, Nigeria, during the 1996 epidemic of bacterial meningitis. The experiments were conducted on 200 children and were said to be successful. Recently, 30 Nigerian families of the children used in the experiments filed a lawsuit against Pfizer claiming they had violated
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culture type. For example, Streptococcus agalactiae, also known as Group B Strep or GBS, is a normal flora of the digestive, urinary, and genital tracts, that is found in 20 - 40% of women. While it usually causes no illness in carriers of the bacteria, a pregnant woman colonized with GBS late in her pregnancy can pass it to her baby with very serious outcomes. Newborn GBS most often infects the lungs, blood , and spinal fluid, causing pneumonia, sepsis, and meningitis, respectively. (ACOG, 2014)
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Bugs, bugs, bugs! Bugs are everywhere in our environment. The potential for infection never ends! The spread of infection is dependent upon three key factors. Pathogenic organisms, those that cause infection, require a source or home where they thrive, a means of transmission, and a susceptible host to be successful. The source of an infecting organisms is classified as endogenous or exogenous. Endogenous infections are caused by microorganisms that naturally inhabit the human body. These organisms
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University of Phoenix Material Cell Structures Complete the following charts comparing prokaryotes and eukaryotes, plant and animal cells, and cells and viruses. Prokaryotes and Eukaryotes |Prokaryotes: unique structures |Common structures |Eukaryotes: unique structures | |Capsule |Cell Membrane |Plasma Membrane | |Cell WALL
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Growth of Microorganisms Culturing is the growing of micro-organisms in prepared media in the laboratory. The prepared medium is called the ‘culture medium’. Bacteria, fungi and algae grow easily in test-tubes, flasks or Petri dishes of culture media. Virus on the other hand, can only grow and multiply inside living cells, so they cannot be grown in a culture medium. Micro-organisms are able to increase in size and multiply in number of cells. The growth of micro-organisms is measured based on
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* What is the infectious agent (pathogen) that causes this infectious disease? Hepatitis A is an acute infectious disease that occurs within the liver. The time of infection and expediting symptoms can take anywhere from two to six weeks. When there are symptoms around 10-15% of people experience a recurrence of symptoms during the six months after the initial infection. Acute liver failure occurs mainly in people who are old. Hepatitis A is caused by a virus. * How is this infectious agent
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Chapter 1 Terminalia Catappa’s Antimicrobial Property Introduction With the emergence of new drug-resistant bacteria, it has been an on going problem on how to fight these pathogens. The common treatment is by using antibiotics but because of its resistance to the existing drugs, there is a constant need to develop new drugs which is very expensive. One way to help solve this is to use a plant based drugs, not only it’s cheaper but also has fewer side effects. There have been a lot of studies
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staphylococcaceae , which are composed of 32 species and 8 sub species in the genus staphylococcus, The staphylococci and non-motile, non-spore forming facultative anaerobes that grow by aerobic respiration or by fermentation, staphylococci are gram positive bacteria with diameters 0.5 and 1.5 μm and characterized by individual cocci, which divide in more than one plane to form the grape-like clusters. The cell wall of S aureus has a tough protective coat which is relatively amorphous in appearance, about 20
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Scientific Discovery Paper Penicillin is an antibiotic that destroys bacteria by destroying the cell wall of the microorganism. It does this by inactivating an enzyme necessary for the cross linking of bacterial cell walls. The enzyme is known as the Tran peptidase. It accepts the penicillin as a substrate, it the alkanolates a nucleophilic oxygen of the enzyme, rendering it inactive. Cell wall construction stops and the bacteria soon die. The antibiotic nature of the penicillin so due to the strain
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