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Free research papers and essays on topics related to: virus

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  • Computer Virus Technology - 1,778 words
    Computer Virus Technology 2.0 Introduction The wind of change came on 26th March in the form of an email cyclone called Melissa. Moreover, during 1999 numerous changes in the level of computer virus technology were seen, Armstrong (May 2000, p1). From an organisational point of view, societies around the world are just learning about the level of importance that computer security against virus attacks and the critical significance of cybercrime. Companies around the world lost vast amounts of time, money and resources due to the lack of defense systems and lack of knowledge. Companies must ensure that the all data processing equipment like computers, routers and networks are robust and secur ...
    Related: computer security, computer virus, technology, virus, operating system
  • Ebola Virus - 720 words
    Ebola Virus The Ebola Virus Cause of Disorder Ebola is a virus and part of the negative-stranded RNA family known as filovirus. It was discovered in 1976 in Africa and was named after a river in Zaire. When the virus is looked at under an electron microscope the filoviridae appear as being long, thin and occasionally they have 'branches' sprouting from one place or another. Ebola can also take the form of a 'U' or a 'b'. There are four known strains of the virus; they are Ebola Sudan, Ebola Zaire, Ebola Reston and Ebola Tai. Ebola Reston only causes disease in monkeys but as the rest of them take approximately 8 hours to duplicate itself. How is it Transmitted The Ebola virus can easily be t ...
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  • Ebola Virus - 1,092 words
    Ebola Virus In the year 1976, Ebola climbed out of its unknown hiding place, and caused the death of 340 people. Fear gripped the victims faces, and uncertainty tortured their minds. The people of Zaire waited outside clinics, churches and in their homes for a treatment of the horrible disease, but there was no cure. They were forced to watch people die, hoping that they would be saved from the violent death of the Ebola virus. From the year of 1976 to the present date of 1996, researchers have searched for origin and cure of the virus. Scientists have carried out numerous studies and investigations, but no one has been able to find the right explanations. Prevention of a world wide outbreak ...
    Related: ebola, ebola virus, virus, west africa, frequently asked
  • Ebola Virus - 1,889 words
    Ebola Virus In the world today, there are many known deadly viruses, but few present as great a threat as Ebola, the virus that causes Ebola Hemorrhagic Fever. Key factors in understanding Ebola HF include: Its history, plan of attack, and the diagnosis and treatment of the disease. The Ebola virus can, and usually does cause a disease called Ebola hemorrhagic fever, which is a Viral hemorrhagic fever. According to the proceedings of the 4th National Symposium on Biosafety, the clinical definition for Viral hemorrhagic fever is as follows. "Viral hemorrhagic fever is an acute infection that begins with fever, myalgia, malaise and progresses to prostration. It shows evidence of vascular dysre ...
    Related: ebola, ebola virus, influenza virus, virus, health care
  • Ebola Virus - 1,094 words
    Ebola Virus Ebola virus, a member of the Filoviridae, burst from obscurity with spectacular outbreaks of severe, haemorrhagic fever. It was first associated with an outbreak of 318 cases and a case-fatality rate of 90% in Zaire and caused 150 deaths among 250 cases in Sudan. Smaller outbreaks continue to appear periodically, particularly in East, Central and southern Africa. In 1989, a haemorrhagic disease was recognized among cynomolgus macaques imported into the United States from the Philippines. Strains of Ebola virus were isolated from these monkeys. Serologic studies in the Philippines and elsewhere in Southeast Asia indicated that Ebola virus is a prevalent cause of infection among ma ...
    Related: ebola, ebola virus, virus, limited resources, life cycle
  • Ebola Virus - 1,107 words
    ... ltifactorial nature of viral evolution makes it difficult to predict such events. According to Doolittle, retrovirus evolution is sporadic, with retroviruses evolving at different rates in different situations. For instance, the human endogenous retroviral element is shared with chimpanzees, indicating no change in over 8 million years, whereas strains of HIV have diverged in mere decades. Endogenous retroviruses carried in the germline evolve slowly compared with infective retroviruses. Generation of new viral pathogens is rare, and often possible only because of high mutation rates that permit many neutral mutations to accumulate before selective pressure forces a change. The seeming u ...
    Related: ebola, ebola virus, influenza virus, virus, oxford university press
  • Invasion Of Privacy Computer Virus Internet - 1,505 words
    Invasion Of Privacy Computer Virus Internet The information age is the age we live in today, and with the information age comes an age of ethics. When we deal with the new technologies introduced every day, we need to decide what we must consider ethical and unethical. We must consider all factors so that the use of the information readily available to many persons is not abused. Information technology will be the most fundamental area of ethical concern for business in the next decade. (Ermann) The most widely used tool of the information age is the computer, whether it is a PC or a network of computer systems. As we enter the information age, the newness and power of information technology ...
    Related: computer crime, computer ethics, computer software, computer systems, computer virus, invasion, invasion of privacy
  • Lassa Virus - 650 words
    Lassa Virus The Lassa virus is a vulgar virus with a high mortality rate and an expensive cure. Lassa was strange to me because I have never heard of the virus before. As I was reading in my research, I began to realize the risk the virus has on people. Lassa was first discovered, in humans, in a village in northern Nigeria (Andrechek). Lassa outbreaks have been reported in Guinea, Senegal, Mali, Sierra Leone and Zaire, which are all countries in West Africa (Andrechek). There have been reports of the Lassa virus out side of West Africa but those were in health care workers who had previously worked in that area. There is an estimate of 200,000 to 400,000 cases of Lassa Fever annually, thous ...
    Related: virus, respiratory system, blood pressure, chest pain, pregnant
  • Sub Seven Virus - 959 words
    Sub Seven Virus Imagine this, youre at home playing on the computer when suddenly your cd drive opens. You brush it off as it were nothing unusual but then a few minutes go by and out of nowhere you printer starts printing a page that says you have a virus that allows people total access your files. You begin to panic when a message window pops up and its the person that printed that out. He tells you that the virus you have is called the subseven virus. I didn't have to hard of a time imagining that situation because it really happened to me. The guy that informed me of having the virus told me where I could download the program to access people files. So I, being the curious type downloade ...
    Related: virus, internet connection, operating system, computer company, text
  • Subseven Virus - 1,007 words
    ... o the following: Look on the right of the regedit box for the following: SystemTrayIcon = "C:WINDOWSSysTrayIcon.Exe" SystemTray = "SysTray.Exe" Kernel16 = "kernel16.dl" RegistryScan = "rundll16.exe" If you have one of these, click on it once with the left mouse button, then right click on it. When the menu item appears, click on delete. It will then dissappear from regedit. After you've done this, close regedit and reboot your computer Note: Some versions of SubSeven won't add anything to regedit, so if you don't see any of the lines above, just proceed to the next step. Now its time to check the Win.ini file. This loads every boot and some versions of SubSeven add a line to the Win.ini ...
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  • The Bulgarian And Soviet Virus Factories - 4,622 words
    The Bulgarian and Soviet Virus Factories The Bulgarian and Soviet Virus Factories ======================================== Vesselin Bontchev, Director Laboratory of Computer Virology Bulgarian Academy of Sciences, Sofia, Bulgaria 0) Abstract =========== It is now well known that Bulgaria is leader in computer virus production and the USSR is following closely. This paper tries to answer the main questions: Who makes viruses there, What viruses are made, and Why this is done. It also underlines the impact of this process on the West, as well as on the national software industry. 1) How the story began ====================== Just three years ago there were no computer viruses in Bulgaria. Afte ...
    Related: bulgarian, computer virus, soviet, soviet union, virus, virus protection
  • The Bulgarian And Soviet Virus Factories - 4,639 words
    ... them with a debugger (YANKEE DOODLE) both are viruses, made in our country. - Hiding the true file length usually causes problems, because CHKDSK is able to detect the difference between the disk space marked as used in the FAT and the reported file length. Only two Bulgarian viruses in the world are able to handle this problem --- DIAMOND and V2100. - The first really "stealth" file infector --- the 512 virus was Bulgarian. It is true however, that the idea has been discovered independently almost at the same time in other parts of the world (the 4096 virus from Israel). - The only known stealth parasitic virus, which "stealthy" features go down to the BIOS level (i.e., it cannot be det ...
    Related: bulgarian, computer virus, soviet, soviet union, virus, virus protection
  • The Ebola Virus - 473 words
    The Ebola Virus The Ebola virus (family Filoviridae) responsible for a severe and often fatal haemorrhagic fever; outbreaks in primates as well as in humans have been recorded. The disease is characterised by extreme fever, rash, and profuse haemorrhaging. Fatality rates range from 50 to 90 percent. (1) Ebola was regarded as an epidemic in 1976 when it was discovered along the Ebola River in Zaire. The outbreaks moved throughout Zaire and The Sudan. In 1995 there was another epidemic in Zaire which resulted in hundreds of deaths as did the earlier epidemics. (2) People who contracted the Ebola virus will notice symptoms 4 16 days after they contract the virus. An infected person will sudden ...
    Related: ebola, ebola virus, virus, renal failure, gastrointestinal tract
  • The Ebola Virus - 1,594 words
    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 are know to cause disease in humans. The Ebola virus, which dates back to 1976, has four strains each from a different geographic area, but all give their victims the same painful, often lethal symptoms. The Ebo ...
    Related: ebola, ebola virus, virus, respiratory system, most dangerous
  • The Ebola Virus - 426 words
    The Ebola Virus By: Wesley Mark Whitworth Ebola is an extremely deadly virus in our society today. Some even claim that is the most deadly ever discovered. Ebola is a member of the filoviruses (a family of RNA-BASED viruses). Filoviruses get their name from their peculiar shape. They appear to be long threads or filaments (henceforth the name filoviruses) *See attached photo. This virus was discovered in 1976 in Zaire, Africa and in Western Sudan, Africa. During the first outbreak there were approximately 550 cases leading to 340 deaths. Three years after the first outbreak, a smaller outbreak took place in Sudan, Africa. This outbreak was much smaller though, with only 34 cases and 22 death ...
    Related: ebola, ebola virus, virus, society today, state department
  • The Ebola Virus: Investigating A Killer - 1,455 words
    The Ebola Virus: Investigating A Killer The female scientist, fully dressed in a quarantine outfit, anxiously prepared to inject a sedative into the arm of the delirious patient. Although he was being held down by several pairs of arms, he was still putting up a good fight. The needle goes in. He jerks. The needle flicks into the forefinger of the scientist. The scientist stares at her finger in shock and disbelief, and runs away. It would only be a few days now before she would die. Thankfully, this is only a scene out of the 1995 box-office hit, Outbreak (Fig. 3), which was about Americans fighting against the spread of a nationwide epidemic caused by one of the most feared viruses of our ...
    Related: ebola, ebola virus, investigating, killer, supportive care
  • The Ebola Virus: Investigating A Killer - 1,475 words
    ... a more highly populated area; - poor hygiene and sanitation in a human population, hence increasing the chances of contact with bodily fluid (e.g. excretion from Ebola patients get into sewage system and human contact is common); - decreased immunity level in population; - insufficient public health infrastructure (e.g. hospital facilities); - lack of public education regarding the virus; - poor communication infrastructure (leading to delayed medical response and public notification). The analysis of these conditions has helped many understand when, why and how Ebola disasters strike. Precautions can therefore be taken by following the following preventive measures. More recent outbreak ...
    Related: ebola, ebola virus, investigating, killer, immune system
  • The Marburg Virus - 1,024 words
    The Marburg Virus Many new viruses are emerging from the rainforest every year. The deadly viruses include the Ebola, Marburg, and AIDS viruses. They are some of the most destructive and lethal viruses that human kind has ever seen. They seem to affect most of the body and its organs with some rather gruesome symptoms. Although most die ending their suffering, some survive to relay the story of their pain. The Marburg virus described in "The Hot Zone" , by Richard Preston, exemplifies these new gruesome viruses well. A person is infected with the virus through sexual contact or contact with bodily fluid(29,39). After infection, the symptoms begin within seven days(14). The symptoms begin wit ...
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  • Virus Invaders - 344 words
    Virus Invaders Katie Turner Technical Writing Period 7 Virus Invaders, written by Alan E. Nourse, M.D., explores different viruses and our body's defenses against them. This book traces the history of the discovery of viruses, and discusses the difficulty of identifying them, major diseases caused by viruses, the present state of virology, and the prognosis for the treatment. This book is an up-date examination of the structure and function of viruses that covers how they invade the body and what they do once they have entered. Common and uncommon diseases (chicken pox, hepatitis, mononucleosis, herpes, Chronic Fatigue Syndrome, encephalitis, AIDS) are discussed in depth. Viruses are so myst ...
    Related: virus, technical writing, fatigue syndrome, present state, in-depth
  • Sexually Transmitted Diseases - 875 words
    A major question facing many teenagers is whether or not to have sex. A result of having sex is contracting sexually transmitted diseases. Sexually transmitted diseases, or venereal diseases affect 10 to 12 million Americans each year. (Daugirdas 75) In the United States, sexually transmitted diseases strike an average of one person every 1.5 seconds. (76) About half of STD patients are under the age of twenty-five. (Landers 45) Nearly 2.5 million teenagers are infected with these deadly diseases. (Welsh A-5) A few types of sexually transmitted diseases are gonorrhea, herpes, chlamydia, syphilis, etc. These diseases can be fatal if not attended to. In addition to those epidemic diseases alre ...
    Related: sexually, sexually transmitted disease, sexually transmitted infections, transmitted, transmitted diseases
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