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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Hepatitis A virus infection is transmitted in the fecal oral form or through vertical transmission in preganancy. HAV presents with flu like symptoms‚ low grade fevers‚ nausea‚ anorexia‚ and vomiting. Pharyngeal erythema is not a common finding seen in HAV infection. . Nucleic acid testing (NAT) is the gold standard for diagnosis
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Although people say it’s not a big deal‚ the Zika virus is a major problem in the world today‚ it is damaging the lives and will have an affect on the summer olympics because there isn’t a vaccine and it can be spread quickly through mosquitoes in the warm Rio climate. In 1947‚ in the Zika forest‚ a rhesus monkey was found with a fever. Scientist at the time decided it was best to cage the animal to see if the fever diminished‚ after two days symptoms still remained. The worried scientist rushed the
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If you have asthma its very difficult breathing through your airways. They become more even swollen and the muscles around the airways can tighten when something triggers your symptoms. Common asthma triggers are allergies‚ tobacco‚ medication‚ emotional anxiety and stress‚ viral and bacterial infections. Symptoms of asthma are coughing‚ shortness of breath‚ wheezing‚ and chest tightness. Asthma affects people very differently than people who don’t have asthma. When people breathe normally
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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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An Effective "Virus" Are you addicted to shopping? According to John de Graaf‚ David Wann‚ and Thomas Naylor‚ just about everyone is. In the article‚ "The Addictive Virus"‚ the three writers succeed in supporting their claim that Americans are buying too much "stuff" and for the "wrong reasons". The article uses a casual tone and easy language to create an effect that is light and somewhat humorous at times. Along with its mainly easy-to-read content‚ the article keeps its integrity by including
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Virus and Bacteria Virus - A virus is a capsule of protein that contains genetic material. A virus cannot reproduce on its own; it must infect a living cell to grow. Bacteria - Bacteria are one-celled organisms that live on their own. They can multiply and reproduce by subdivision Bacteria and viruses cause many of the diseases we are familiar with and may sound synonymous; they are greatly different from each other. [pic] o They differ greatly in size. The biggest viruses are only as large
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the skin‚ kidneys‚ lungs‚ heart and brain. This attack induces inflammation‚ causing redness‚ pain‚ and swelling. It is not contagious. Symptoms come and go and vary from person to person. The symptoms can develop so slowly that the person may not notice for a long time. When the lupus symptoms are evident‚ they are called flares or relapses. When the symptoms are better‚ it is said that they are in remission. There are three major types of lupus: 1. Systemic Lupus Erythematosus - lupus that
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COMPUTER VIRUS Good afternoon everyone. Hoping all of you are well. This is the time to present my informative speech. For making a Digital Bangladesh‚ every citizen has to expert user of computer and our authority has to computerize all sections of this country. But the major threat for using a computer is “virus”. That’s why I have prepared my speech to inform my audience about it. Today I have prepared Four special points for illustrate a virus. a) What is a Virus? b) What Viruses
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1. What is a Virus? A computer virus is a program that can copy itself and infect a computer without the user knowing. Some viruses are made to damage the computer by damaging programs‚ deleting files‚ or reformatting the hard disk. Others are not designed to do any damage‚ but replicate themselves and perhaps make their presence known by displaying text‚ video‚ or audio messages. Even these benign viruses can create problems for the computer. They usually take up computer memory used by other programs
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