The common cold is not just one virus‚ but over 200 different strains of viruses. The most common type of cold-causing virus is the rhinovirus‚ causing 20% – 50% of all colds. It is widely believed that it is the virus itself that somehow causes the observed symptoms. However‚ this is not the case. When a cold infects the body (the nasal cavity and back of the throat‚ to be precise)‚ the white blood cells trigger chemical mediators to help fight the attack‚ indirectly causing symptoms such as a blocked
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food borne illnesses but the norovirus is very interesting. A norovirus is a small virus that contains RNA and is surrounded by a protein coating. Based on genetic typing‚ it is now known that there are at least twenty-five different strains if norovirus that affect humans. Norovirus infection is the most common cause of what some people call the “stomach flu‚” although norovirus is not related to the influenza virus. According to statistics from the CDC‚ there are twenty-one million cases of norovirus
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book starts off in the late 1990’s in New York. A girl by the name of Kate Moran‚ who is well later to be known as the first victim from a mysterious virus‚ lived her life as a usual laid back teenager. Well one day at school‚ out of no where‚ Richard Preston‚ which is the author‚ goes into great detail of Kate’s spontaneous reaction toward the virus that she had gotten that no one had known at the time. She has a terrible seizure and dies at the end of the first chapter. Alice Austin would be
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Although there was some rare case that healthy people get infected because of prolonged contact to sick person‚ the virus transmission mainly took place between poultry and human. From the official website of CDC‚ notice that giving out was about how should travelers react to the local disease. The website displayed detailed information of what people should do and should
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It is define as an Acute Infection Disease with a large number of atypical lymphocytes. Caused by the Epstein-Barr virus. There may be abnormal liver function and spleen enlargement. Infectious mononucleosis (mono) is often called the kissing disease. The virus that causes mono is transmitted through saliva‚ so you can get it through kissing‚ but you can also be exposed through a cough or sneeze‚ or by sharing a glass or food utensils with someone who has mono. However‚ mononucleosis isn’t as contagious
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Guide Bio 202 Chapter 13 Differentiate a virus from a bacterium Describe the chemical and physical structure of both an enveloped and a nonenveloped virus. (Include a description of the envelope‚ capsid‚ and core The nucleic acid of a virus is protected by a protein coat called the capsid. The structure of the capsid is ultimately determined by the viral nucleic acid and accounts for most of the mass of a virus‚ especially of small ones. Each capsid is composed of
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July 27‚ 1976 | Very 1st person to contract Ebola virus began to show symptoms. Ten days later he was dead | 1976 | These chemicals‚ the team found‚ target the protein encoded by the NPC1 gene identified as essential by the other research group. By binding to the NPC1 gene product in the endosome‚ the drug molecules appear to prevent ebola from being able to attach itself‚ preventing it from bursting the endosome bubble and escaping into the cell. | September 1‚ 1976 | Ebola-Zaire (ZEBOV)ZEBOV
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References……………………………….............................................9 Abstract The functional unit of the human immunodeficiency virus type 1 (HIV-1) envelope glycoproteins consist of compact trimers of noncovalently associated gp120 exterior glycoproteins and gp41 transmembrane glycoproteins.The glycoproteins so called spikes have the role in virus-cell attachment and is of particular importance and is the major target for vaccine design. The lability of intersubunit interactions has hindered
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capsid is a protein layer that wraps around the virus. There are four basic shapes of viruses. The tobacco mosiac‚ adenovirus‚ influenza virus‚ and t-even bacteriophage are each examples of a different virus structure. Each individual protein subunit composing the capsid is a capsomere. The tobacco mosiac virus has a helical capsoid and is rod shaped. The adenovirus is polyhedral and has a protein spike at each vertex. The influenza virus is made of a flexible‚ helecal capsid. It has
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Literary Analysis and Composition II (Sem2) | What’s Important | Lesson 4 LACII Unit 1‚ Lesson 4 Self-Check Answers Vocabulary: Words in Context Read the sentences below. Use the context clues to determine the meanings of the new words. Check your answers using the definitions at the bottom of the pages 57–58 of your Explorations anthology. 1. Graham admired the scholars he met while working at the library because they never seemed to tire of learning new things or seeking out original ideas
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