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    Influenza Virus

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    Influenza virus is a substantial threat for human health and is a big cause of ~500,000 death rates[1] and is responsible for ~50 million death worldwide over last 100 years.[2]-[4] Influenza viruses is generally classified in to three genera (A, B,C). Influenza A and B viruses have rapid evolution and continuous accumulation of amino acid changes in the antibody-binding sites of the surface protein, results in the change in antigenicity. Despite of existing vaccination programs, research in

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    Lassa Virus Essay

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    possibility of a Lassa or Zika virus outbreak and focusses on the following four criteria - distribution, effect, treatment, and control methods. The Lassa virus originated in West Africa, and is transmitted through household items contaminated with rodent urine or faeces. The mode of transmission is through an infected rodent, commonly known as the Multimammate rat, or Mastomys. Due to the distribution of the Multimammate rat (Refer to Figure 1), the Lassa virus has not affected very many countries

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    Virus Persuasive Speech

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    Virus one of the hotly debated topic in today’s society has been blamed for many illnesses and complication. According to Britannica encyclopedia a “virus, is an infectious agent of small size and simple composition that can multiply only in living cells of animals, plants, or bacteria”. To explain the theory of whether viruses is alive of dead let look at the following. Living things must be able to reproduce, grow and develop and some these principles exhibit by viruses when they enter the host

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    A filo virus is any virus that is characterized as filamentous single stranded RNA viruses which have unique ways of reproduction and structure. Alongside the Ebola virus, Marburg virus is part of the filo virus group. Marburg virus is almost difficult to notice apart from Ebola, they very closely resemble. Such virus causes a disease in both humans and animals, known as Marburg Virus Disease. It was first documented in humans from an outbreak in Germany and Yugoslavia. Several workers from a laboratory

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    Some viruses can be mild, and some can be deadly. Viruses such as rhinitis and gastroenteritis can be treated easily but some like malaria and the ebola virus can be fatal. Viruses are microscopic pathogenic particles so small that they can only be seen through an electron microscope. A virus particle, or a virion, consists of a strand of nucleic acid, either DNA or RNA, surrounded by a capsid (protein coat). Some have a membrane of lipid (envelope) surrounding the protein, providing an extra layer

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    The term "virus" originated from a Latin word meaning slimy liquid or poison. Half of every humans DNA originates from one virus or another. Viruses take up 20 - 400 nanometers of space which is not visible to the naked eye. There are at least 10 viruses for every single organism on planet earth. Viruses are the largest single inhabitant of the ocean. In every milliliter of water, there are more than 1 million virus molecules. To give you an idea of the of the sheer amount of virus molecules that

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    A virus replicates itself when it comes in contact with a host cell it injects its genetic material into the host, taking over the host's functions and replicating itself. A cell that is infected then helps the virus spread around affecting the person depending on the virus. Some host cells take a short amount of time to cause change to a person's body. However, Some viruses last a long time inside host cells for long periods of time and they don't cause any major changes in their host cells making

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    My assigned book is the hot zone by Richard Preston, the book demonstrates about a highly contagious and lethal virus that is known as “Ebola virus” that is divided into two types the Ebola Zaire and the Ebola Sudan. The writer also mentioned about other filo viruses such as the Marburg virus and rabies. The hot zone book illustrates the origins of the virus and how it started to disperse from one person to another or from a region to another. And how epidemiologists, scientists and doctors discovered

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    1. Varicella-Zoster virus (VZV): Varicella and Zoster virus (VZV) belongs to the Alphaherpesvirinae subfamily and is the responsible for two human illnesses: varicella and zoster. Three Alphaherpesviruses are capable of infecting humans: herpes simplex virus 1 (HSV-1), herpes simplex virus 2 (HSV-2) and varicella-zoster virus (VZV). The members of this subfamily are commonly characterised by their ability to establish a latent infection in neurons. Primary infection occurs in epithelial cells leading

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    The tobacco mosaic virus is a single-stranded RNA virus that belongs to the genus tobamovirus, the genus that specifically affects the family Solanaceae and belongs to the family Virgaviridae. The tobacco mosaic virus was the first virus to be discovered(1). In 1982, Dmitri Ivanovsky suggested that there was a non-bacterial infectious agent that was still present in the infected sap after filtering(2,3). In 1898, Beijerinck repeated the Ivanovsky experiments and also found out that the infectious

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    VARICELLA ZOSTER VIRUS Varicella Zoster virus (VZV) is the causative organism of Chicken pox. The infection is acute and highly contagious. Apart from people immunized, about 90% of people globally get infected during their childhood by age 20 (Pérez-Farinós et al, 2007). The illness lasts for about 7to 10 days (). ……. The illness starts as fever, general and cold. In some children and adults it starts with rash. The virus is culturable from the mononuclear cells of an infected person 5 days before

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    West Nile Virus is a member of the genus Flavivirus in the family Flaviviridae, made up of viruses that are routinely spread through arthopod vectors. More specifically, it is associated with the Japanese Encephelitis antigenic complex, which is included in the genus Flavivirus, and home to eight pathogen-causing virus species. It is a single-stranded, positive RNA virus surrounded by an enveloped capsid that is around 50nm in diameter. It has the ability to infect birds, mosquitoes, humans, horses

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    Chicken Pox Virus

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    Chicken pox is caused by the varicella-zoster virus. It is a relative of the herpes virus and highly contagious and is predominately a childhood disease. The disease can be spread by airborne means through coughing and by contact. The disease may also be spread by those that have developed shingles which is a secondary infection of the varicella-zoster virus that develops with age. Anyone that has had chickenpox can develop shingles. The virus goes dormant when the chicken pox clears but can reactivate

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    A macro virus is a computer virus that alters or replaces a macro, which is a set of commands used by programs to perform different actions. (http://usa.kaspersky.com/internet-security-center/definitions/macro-virus). These viruses are made in Microsoft word macro. That is the main reason they are called macro viruses. A macro is a series of commands and actions that help to automate some tasks. The main task of these little guys is to mess around with word documents, infect all documents on someone’s

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    First of all there are three of the same virus on the system that was scanned. That virus is called Win32/DH{eRUTxVzF3U} and it is one of the bad viruses that we do not want on our computers. The virus can replicate itself and attach and infect the files it attaches itself to. Once it starts to replicate itself that will take up space in your hard drive and make it so that you have less space for you to use. The virus can change the file that is in on or steal the information that inside that file

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    In the novel, The Hot Zone, many new superstitions become significant due to the fear of epidemics. This connects to the many rituals that were performed and charms that were held. During the outbreak for Ebola and Marburg, people began to fear the virus. They feared they would get infected as everyone else. This fear lead to rituals being performed and lucky charms being held. In the novel, each person who worked in the biohazard lab always “performed all kinds of small rituals before they entered

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    Bluetongue Case Study

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    Bluetongue is an infectious, non-contagious viral disease of ruminants and camelids transmit¬ted by Culicoides biting midges. It is caused by the bluetongue virus (BTV) and is placed in the epizooties list of diseases international. The manifestations of bluetongue range from an in apparent to a fatal outcome depending on the serotype and strain of the virus and the species, breed and age of the infected animal; older ani¬mals are generally more susceptible. Clinical signs are usually detected in fine-wool

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    Essay On Monkeypox

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    Human monkeypox is a viral zoonotic disease caused by the monkeypox virus (MPXV), a member of the genus Orthopoxvirus (family Poxviridae, subfamily Chordopoxvirinae), that occurs mostly in the rain forests of central and western Africa. People living in or near the forested areas may have indirect or low-level exposure, possibly leading to subclinical infection. However, the disease recently emerged in the United States in imported wild rodents from Africa. Monkeypox has a clinical presentation very

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    Essay On Chicken Pox

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    Chicken Pox Chicken pox is also known as varicella and is caused by varicella zoster virus. According to Arthur Schoenstadt, in the 1500s chicken pox was first discovered by Giovanni Filippo in Italy. Then in the 1600s an English physician, that went by the name of Richard Morton gave the name chicken pox to what he thought was a bad case of the virus known as smallpox. During the 1700s it is believed that William Heberden was the very first English physician to prove that chicken pox and smallpox

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    The Ebola Virus

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    Trimester: Trimester 8 Topic: Virology Assignment- Discussion on the problems associated with the sporadic outbreak of Ebola virus and why this current outbreak is posing a serious problem to our health system. Introduction Viruses A virus is defined as a microscopic infectious agent which can only replicate inside the cells of other living organisms. Viruses are generally considered as non-living due to the fact that they are not cells, they do not contain cells and lack living components such as

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