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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their children. First‚ vaccine- preventable diseases have not gone away. Secondly‚ contrary to belief. Vaccines are safe and effective. Thirdly‚ vaccine- preventable diseases are very expensive. The viruses and bacteria that cause illnesses and death‚ such as influenza still exist today and can be passed on to those around us who are not vaccinated. I know many people cite the myth that vaccines are as dangerous as the disease themselves. This is just not correct‚ vaccines are among the safest medical
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What do vaccines protect against? Vaccinations have reduced the spread of many diseases; including‚ but not limited to hepatitis‚ mumps‚ rubella‚ influenza‚ polio‚ and eradicated smallpox. As narrated in the RX for Survival: Disease Warriors‚ a Global Health Challenge video (2005) produced by Beckham‚ vaccines are “the ammunition for the war” against diseases. One example given was the polio vaccine‚ which has decreased the numbers of cases from the thousands to now hundreds (Beckham‚ M. 2005).
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Avian Influenza‚ also known as the bird flu‚ is a virus that primarily infects birds. In rare cases‚ can this virus affect humans in a way that is harmful. There are three forms of the Avian Influenza which are: H5‚ H7‚ and H9 viruses. The H5 virus has circulated Asia and the Middle East in about 16 different countries worldwide. It mostly affected these countries because they have this bird species within range of human contact. The H7 virus is a type that is very uncommon in humans‚ unless they
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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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Biology Virus Essay A virus is a microorganism that cannot reproduce without a host. As a result of this‚ there has been a lot of controversy on whether or not a virus is a living or non-living organism. The dictionary.com definition for life is‚ “the condition that distinguishes organisms from inorganic objects and dead organisms‚ being manifested by growth through metabolism‚ reproduction‚ and the power of adaptation to environment through changes originating internally.” Viruses have characteristics
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the Food and Drug Administration (FDA) approved the first vaccine to prevent cervical cancer (Ballaro 1). Some believe that the newly approved vaccine should be widely spread as a means of eliminating this deadly disease‚ while others think it was solely generated for a pharmaceutical firm rather than to promote public health (Otis 1). Human Papillomavirus (HPV) is a sexually transmitted virus named from the papilla‚ or bud‚ that the virus triggered tumor creates (Ballaro 3). HPV is passed on through
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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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Dengue fever‚ also called dengue‚ is a potentially serious disease caused by a virus. There are four types of dengue virus that can cause illness in humans. Dengue viruses are transmitted between humans by the bite of an infected Aedes mosquito. Dengue is rare in the U.S.‚ but is common and a serious public health threat in warm sub-tropical and tropical areas of the world. These include areas of Central and South America‚ Africa‚ Southeast Asia‚ China‚ India‚ the Middle East‚ Australia‚ the Caribbean
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multiply. Viruses have many symptoms: some can simply slow down your computer whilst others can have more severe effects like moving documents and/or deletion of documents or programs. No matter the severity of the virus and its symptoms they should be dealt with by an up-to-date anti-virus program and security software‚ as systems with out-of-date protection are more susceptible and at risk. Computer viruses are most commonly passed through interaction over the internet‚ whether they are attached
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