Viruses: A virus is a small infectious agent that replicates only inside the living cells of other organisms. A virus is a small parasite that cannot reproduce by itself. Once it infects a susceptible cell‚ however‚ a virus can direct the cell to produce many more viruses. Viruses can infect all types of life forms‚ such as animals and plants to microorganisms‚ including bacteria and archaea. Genetic materials of viruses: Most viruses have either RNA or DNA as their genetic material. The nucleic
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Herpes Simplex Virus Type 1 Infection at the Molecular Level Research Paper Virology 24 November 2008 Abstract Herpes simplex virus type 1 (HSV-1) infection is widespread and causes significant disease in humans. The structure‚ epidemiology‚ pathogensis and immune response are examined in this review‚ as well as specific ways to reduce and eliminate pathology and related diseases. The virus naturally infects mucosal areas and begins the search for its target host cell. Upon binding to the host
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One of the most life-threatening and highly contagious viruses in cats is Feline Pan Leukopenia Virus. It is also known as feline distemper. The virus affects red blood cells‚ mostly those in the intestinal tract‚ bone marrow‚ and the stem cells of developing fetuses. The attacks on the blood cells can lead to the development of anemia and lowering of the immune system. The virus can survive for years in contaminated environments‚ making it incredibly difficult to get rid of. Kittens between the
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Bit of Archeology There are lots and lots of opinions on the date of birth of the first computer virus. I know for sure just that there were no viruses on the Babbidge machine‚ but the Univac 1108 and IBM 360/370 already had them ("Pervading Animal" and "Christmas tree"). Therefore the first virus was born in the very beginning of 1970s or even in the end of 1960s‚ although nobody was calling it a virus then. And with that consider the topic of the extinct fossil species closed. Journey’s Start
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Introduction This report will outline that it would be useful for our company to subsidize free distribution of anti-virus software to our home users. There will be analysis of the connection between the company ’s network and home users and how this will help our company ’s problems with viruses. I will discuss the other issues besides providing free software to home users that affect the network security of our firm. Additionally‚ I will describe the roles of top management/non-IT management
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Virus Attack Prevention Based on Hulme (2004) article‚ many companies are now using firewalls‚ antivirus software and intrusion detection systems‚ but hackers and worms still break through business systems and cause serious damage. Lately it seems that more and more prevention and protection is required. Based on the article‚ attacks such as Blaster‚ MyDoom‚ and Witty cost businesses more than ten billion dollars a year. There is a need for more intelligent shields to ward off new attacks as they
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(a) Briefly explain in detail to the management about various fact/issues about ‘virus’ – what it is‚ how it spreads‚ what are the areas of infections‚ what are specific viruses. Most computer users get alarmed when they heard about the word “virus”. Virus brings a lot of damages in human’s computer works as it brought harmful effects. Viruses affect businesses’ efficiency‚ productivity and money as it really takes time to get rid off the threat. Viruses do easily‚ quickly and quietly spreading
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WHAT IS COMPUTER VIRUS A computer virus is a computer program that can replicate itself and spread from one computer to another. The term "virus" is also commonly but erroneously used to refer to other types of malware‚ including but not limited to adware and spyware programs that do not have the reproductive ability. A true virus can spread from one computer to another (in some form of executable code) when its host is taken to the target computer; for instance because a user sent it over a network
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Life Cycle of a Virus The life cycle of a virus begins when it is created and ends when it is completely eradicated. The following outline describes each stage: Creation Until recently‚ creating a virus required knowledge of a computer programming language. Today anyone with basic programming knowledge can create a virus. Typically‚ individuals who wish to cause widespread‚ random damage to computers create viruses. Replication Viruses typically replicate for a long period of time before they
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SOURCES OF COMPUTER VIRUS Virus infection in Computers can be contacted through different means. Below are the commonest causes of Computer Virus attack. 1. Through the internet: The easiest and quickest means of spreading Computer Virus is through the internet. Basically through downloaded files and documents. When the source of a document is not trusted it should not be downloaded. If at all it will be downloaded it has to be thoroughly scanned for virus with a reliable anti-virus Software. 2. Through
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