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Research on antibiotic resistance
Research on antibiotic resistance
Research on antibiotic resistance
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The Super Bug is a strain of bacteria that has become resistant to antibiotic drugs. This particular bacteria has become immune to any antibiotics or medicine. Because of this reason, this bacteria has become very difficult to treat. If this bacteria infects a human body, then it might cause serious health conditions and even death. This Superbug has evolved over the past years and has become even more dangerous. Staphylococcus aureus is a bacteria that is abundant in many places. It can even be found in some of our bodies. These bacteria are harmless as long as none of them are Methicillin resistant Staphylococcus aureus (MRSA). Methicillin is the name of a family of antibiotics that includes penicillin. This MRSA is the deadly superbug that has developed resistant to antibiotics. Statistics show that MRSA contributes to more US deaths than does HIV. It has become a huge threat to every country as the outbreaks can be a surprising one. This threat is caused by the evolution of the bacteria. These superbugs have evolved a resistance of antibiotics which makes them extremely difficult to treat. One article states, “In the early 1940s, when penicillin was first used to treat bacterial infections, penicillin-resistant strains of S. aureus were unknown — but by the 1950s, they were common in hospitals. Methicillin was introduced in 1961 to treat these resistant strains, and within one year, doctors had encountered methicillin-resistant S. aureus. Today, we have strains of MRSA that simultaneously resist a laundry list of different antibiotics, including vancomycin — often considered our last line of antibacterial defense.” [1] Furthermore, one way the MRSA have evolved is through horizontal transfer. Horizontal transfer occurs whe... ... middle of paper ... ...Confirmed in Hernando High School." TBO.com. Tampa Media Group, 31 Oct. 2013. Web. 03 Apr. 2014. . Bibliography Haney, Janice. "Superbug, Super-fast Evolution." Superbug, Super-fast Evolution, Apr. 2008. Web. 03 Apr. 2014. . Reinig, Matt. "Two Cases of MRSA Confirmed in Hernando High School." TBO.com. Tampa Media Group, 31 Oct. 2013. Web. 03 Apr. 2014. . Thilmany, Jim. "Swatting the superbugs." Mechanical Engineering-CIME Mar. 2013: 10. General Science Collection. Web. 17 Apr. 2014. < http://go.galegroup.com/ps/i.do?id=GALE%7CA325174722&v=2.1&u=nysl_me_77_tevth&it=r&p=PPGS&sw=w&asid=e3b465a4bc4ed55f079c4c31fb5b129a>
Methicillin-resistant Staphylococcus aureus is similar to regular hospital acquired MRSA in that it is resistant to cefazolin, and antibiotics similar to cefazolin. However, it differs from MRSA in that it doesn't display MRSA’s common risk factors, and is susceptible to other various antibiotics.
Vol. 65 Issue 4, pg. 78. 316-319. The. 4 p. Ebsco Host. Tucker, Phillip Thomas, 1953.
Another aspect of the story is associated with Major Nancy Jaax. She is a member of USAMRIID or United States Army Medical Research Institute of Infectious Diseases. USAMRIID does research on different w...
our everyday lives bacteria is constantly surrounding us, some of the bacterium that we encounter are beneficial to us but then there are the ones that are severely detrimental to our health. The way that they effect a persons body can differ from person to person. Many of the “microscopic foes” are very resilient and have a very fast reproduction rate. Not only do they reproduce quickly they sometimes seem to outsmart our immune system and not allow our bodies to fight the infection making it almost impossible to stop them. One thing that a lot if people rely on is the assistance of prescription drugs to get them better but even the drugs are not being effective and we can’t stop the pathogens from invading our personal places such as work, home, school, or anywhere. Even though modern medicine is advancing the pathogens could still get the get the best of us. The scary thing is we never know when the next pandemic or epidemic is going to arise. All it needs is some ordinary microbe to swap genes with a deadly germ to produce a “super pathogen” and it could happen to anyone, anywhere, as it did to Jeannie Brown who is from “our neck of the woods”.
In the documentary, Hunting the Nightmare Bacteria, reporter David Hoffman investigates this new untreatable infection along two individuals and a bacterial virus within a hospital. The first individual Hoffman investigates is Addie Rerecich of Arizona, she was treated for a staph infection with antibiotics, but other complications arise. Addie had a lung transplant, she was given several different antibiotics, but her body became pan-bacteria, non-resistance to the bacteria. Addie’s life was on the edge, she had to be on life support, and finally she received new lungs. The transplant helped Addie but it would take years before could go back to normal before the infection. The second individual is David Ricci; he had his leg amputated in India after a train accident. The antibiotic treatment he received became toxic to his body increasing problems. While in India, he underwent surgery almost every day because of infections he was developing. Back in Seattle, doctors found the NDM-1 resistance gene in his body; NDM-1 gene is resistance to almost all antib...
Bacterial resistance to antibiotics has presented many problems in our society, including an increased chance of fatality due to infections that could have otherwise been treated with success. Antibiotics are used to treat bacterial infections, but overexposure to these drugs give the bacteria more opportunities to mutate, forming resistant strains. Through natural selection, those few mutated bacteria are able to survive treatments of antibiotics and then pass on their genes to other bacterial cells through lateral gene transfer (Zhaxybayeva, 2011). Once resistance builds in one patient, it is possible for the strain to be transmitted to others through improper hygiene and failure to isolate patients in hospitals.
Griffith high school students, at the intersection of E Pine St & N Broad St.
Brace and Company, Fort Worth, TX, 1996, tenth edition, volume II, pp 73 - 85.
Seventh ed. Vol. 2. New York, NY: W.W. Norton &, 2008. 985-93. Print. 1866 to the Present.
been previously touched by an infected person, will transmit the disease to the healthy person who
Bacterial cells, like plant cells, are surrounded by a cell wall. However, bacterial cell walls are made up of polysaccharide chains linked to amino acids, while plant cell walls are made up of cellulose, which contains no amino acids. Many bacteria secrete a slimy capsule around the outside of the cell wall. The capsule provides additional protection for the cell. Many of the bacteria that cause diseases in animals are surrounded by a capsule. The capsule prevents the white blood cells and antibodies from destroying the invading bacterium. Inside the capsule and the cell wall is the cell membrane. In aerobic bacteria, the reactions of cellular respiration take place on fingerlike infoldings of the cell membrane. Ribosomes are scattered throughout the cytoplasm, and the DNA is generally found in the center of the cell. Many bacilli and spirilla have flagella, which are used for locomotion in water. A few types of bacteria that lack flagella move by gliding on a surface. However, the mechanism of this gliding motion is unknown. Most bacteria are aerobic, they require free oxygen to carry on cellular respiration. Some bacteria, called facultatibe anaerobes can live in either the presence or absence of free oxygen. They obtain energy either by aerobic respiration when oxygen is present or by fermentation when oxygen is absent. Still other bacteria cannot live in the presence of oxygen. These are called obligate anaerobes. Such bacteria obtain energy only fermentation. Through fermentation, different groups of bacteria produce a wide variety of organic compounds. Besides ethyl alcohol and lactic acid, bacterial fermentation can produce acetic acid, acetone, butyl alcohol, glycol, butyric acid, propionic acid, and methane, the main component of natural gas. Most bacteria are heterotrophic bacteria are either saprophytes or parasites. Saprophytes feed on the remains of dead plants and animals, and ordinarily do not cause disease. They release digestive enzymes onto the organic matter. The enzymes breakdown the large food molecules into smaller molecules, which are absorbed by the bacterial cells. Parasites live on or in living organisms, and may cause disease. A few types of bacteria are Autotrophic, they can synthesize the organic nutrients they require from inorganic substances. Autotrophic bacteria are either photosynthetic or Chemosynthetic. The photosynthetic bacteria contain chlorophyll that are different from the plant chlorophyll. In bacterial photosynthesis, hydrogen is obtained by the splitting of compounds other than water.
Infection control is very important in the health care profession. Health care professionals, who do not practice proper infection control, allow themselves to become susceptible to a number of infections. Among the most dreaded of these infections are: hepatitis B (HBV), hepatitis C (HCV), and human immunodeficiency virus (HIV). Another infection which has more recently increased in prevalence is methicillin-resistant Staphylococcus aureus (MRSA). These infections are all treated differently. Each infection has its own symptoms, classifications, and incubation periods. These infections are transmitted in very similar fashions, but they do not all target the same population.
Tamborini, Ron ; Eastin, Matthew S. ; Skalski, Paul ; Lachlan, Kenneth ; Fediuk, Thomas A. ;
In reference to the evolution theories proposed by Lamarck (Lamarckism) and Darwin (Darwinism) the evolutionary of the MRSA is in controversy to which theory best supports it. Certain traits are aligned with both evolutionists as the MRSA have relatable characteristics that define the theories of Lamarckism and Darwinism. However, very few aspects relate to Lamarckism in comparison to Darwinism as the evolution of the MRSA sufficiently relates to the theory of Darwinism. As stated above SCCmec is the major gene that promotes resistance to all β-lactam antibiotics this acquired gene is present in many of the resistant S. aureus. As described by Lamarckian, theory of evolution states that organisms acquire changes that enable them to adapt in