"Norwalk virus" Essays and Research Papers

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    Exam Paper

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    THE UNIVERSITY OF ADELAIDE Examination for the Ordinary Degree of Bachelor of Health Sciences Semester 2‚ 2010 ANAT SC 1103 – Human Biology IB (Course ID: 102130) DURATION: Official Reading Time: 10 mins Writing Time: 150 mins (2 hr‚ 30 mins) Total Duration: 160 mins (2 hr‚ 40 mins) Instructions: This is a closed book examination. The total writing time available for this examination is 150 minutes‚ however‚ it is expected that candidates will be able to answer all of the questions adequately

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    Swine Flu Pre-Clinic DHYG 1331 Audrey Aguirre Audrey Aguirre Pre-Clinic Mrs. Rico 11-1-2014 Swine Flu When you think Swine Flu‚ you automatically think‚ “Okay‚ this is going to be something that has to do with pigs.” Well‚ you’re right‚ it does have to do with pigs‚ but it is a transmissible disease that affects not only the pigs‚ but us as well. In 1918‚ there was a flu pandemic. A pandemic is an infectious transmissible disease that has spread throughout the human populations. While this

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    became a professor at Harvard University Medical School and‚ by 1924‚ was a professor of Bacteriology and Public Health at Washington University in St. Louis. While Rife was acquiring the technical skills and instruments he needed to isolate the cancer virus‚ Dr. Kendall was developing a protein culture medium for cultivation of the typhoid Bacillus. The typhoid Bacillus was usually large enough to be viewed through ordinary research microscopes of the time. However‚ when he used his Medium K‚ this bacterium

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    The Ebola Virus

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    The Ebola Virus History of‚ Occurrences‚ and Effects of Ebola‚ a virus which acquires its name from the Ebola River (located in Zaire‚ Africa)‚ first emerged in September 1976‚ when it erupted simultaneously in 55 villages near the headwaters of the river. It seemed to come out of nowhere‚ and resulted in the deaths of nine out of every ten victims. Although it originated over 20 years ago‚ it still remains as a fear among African citizens‚ where the virus has reappeared occasionally in parts

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    The Ebola Virus

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    The Ebola Virus A virus is an ultramicroscopic infectious organism that‚ having no independent metabolic activity‚ can replicate only within a cell of another host organism. A virus consists of a core of nucleic acid‚ either RNA or DNA‚ surrounded by a coating of antigenic protein and sometimes a lipid layer surrounds it as well. The virus provides the genetic code for replication‚ and the host cell provides the necessary energy and raw materials. There are more than 200 viruses that

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    Phage Lab Report

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    Phage is a virus that consists of a protein coat that surrounds the core of DNA. When phage DNA enters the host cell it directs phage reproduction. DNA is the molecule that is responsibility for heredity. In this experiment‚ phage was added to E.coli in a radioactive medium. Phages were used to demonstrate that DNA is the genetic material. The DNA molecule is surrounded by a protein coat. So‚ when phages infect bacteria‚ they will attach to the surface of the bacterium. When this happens‚ they inject

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    or viruses causing physical illness such as flu. It seems though that infection can also give a rise to mental illness. Flu has been linked to schizophrenia. Recent research shows that schizophrenia cases have been linked with exposure to the flu virus in the womb during the first trimester. The third factor is biochemistry. Neurotransmitters are thought to be out of balance in the nervous system of individuals with certain psychological disorders. For example schizophrenia has been associated with

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    DNA or RNA‚ viruses‚ unlike bacteria are not self-sufficient and need a ‘host’ in order to reproduce‚ for example: ‘Human Body’. When a virus enters the body‚ it enters some certain cells and takes over making them the new ‘host cell’ which makes the parts the virus needs to reproduce‚ the cells are eventually destroyed through this process. The most common virus is the ‘common cold’ which has no cure. Fungi – Mould‚ yeast and mushrooms are all types of fungi. Fungi live in air‚ water‚ soil and on

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    capable of fighting off most bacterial infections so they can mainly be treated with antibiotics. A viral infection is a type of infection by a virus. It is one in which it is spreaded by a virus that is pathogenic to human beings. They are much smaller than bacteria and it is much more difficult to kill a virus than it is to kill bacteria. A virus can’t grow or exist without any host cells. It could cause illnesses as minor as the common cold or as severe as AIDS. Unlike Bacterial Infections

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    Organisms Of Evolution

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    evolution of bacteria is to somehow replace the bacteria’s DNA/RNA polymerase with one that is much better and accurate. This might fool the bacteria/virus into thinking this is a positive change and they might keep it which eventually will make them less susceptible to mutations and dramatically slow down their rate of evolution. However‚ the virus might not accept this as a positive change and natural selection may pick this off right away. Evolution is a very hard if not impossible force of nature

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