Ebola Virus Disease Mr. Romano By: George Young September 10 2014 As of September 2014‚ a total of 4507 confirmed and probable cases of Ebola virus disease (EVD)‚ as well as 2296 deaths from the virus‚ had been reported from five countries in West Africa — Guinea‚ Liberia‚ Nigeria‚ Senegal‚ and Sierra Leone. In terms of reported morbidity and mortality‚ the current epidemic of EVD is far larger than all previous epidemics combined. The true numbers of cases and deaths are certainly higher
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The Influenza virus kills about 36‚000 people a year. The Influenza virus is a potentially deadly virus that attacks the respiratory system. It also leaves the human body very tired and weak. The Influenza virus mostly affects the respiratory system. The basic structure of the Influenza virus includes the Viral Envelope‚ Nucleoprotein (RNA)‚ Neuraminidase (Sialidase)‚ Hemagglutinin‚ and the Capsid. When the virus attacks the respiratory system‚ it causes fatigue‚ fevers‚ and chills. Ironically
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Ebola virus is back‚ this time in West Africa‚ with over 350 cases and a 69% case fatality ratio at the time of this writing (Baize). The culprit is the Zaire ebola virus species‚ the most lethal Ebola virus known‚ with case fatality ratios up to 90%. The epicenter and site of first introduction is the region of Guéckédou in Guinea ’s remote southeastern forest region‚ spilling over into various other regions of Guinea as well as to neighboring Liberia and Sierra Leone. News of this outbreak engenders
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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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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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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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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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the 1950s This week‚ neuroscientist Russell Foster – a specialist in our body clocks – say that schools should start two hours later at “around 10 o’clock”. Hepatitis A virus is carried by human faeces and can be passed on through contact with food or water. latest tablet computers. it is on the shiny new iPad‚ computer or phone‚ included one of the rarest metals on Earth: indium. And analysts are warning that global supplies of indium could be exhausted as soon as 2017. The reason you cannot
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INTRODUCTION: characteristics‚ basic properties and medical importance of the virus The human papilloma virus‚ a member of the family Papillomaviridae‚ is an agent that causes Human Papillomavirus infections that affect skin and mucous membranes. This group of viruses includes more than 100 different strains or types and more than 30 of these viruses are sexually transmitted. HPV can infect the genital areas of both women and men and is a virus specific to humans. This includes the vulva in women‚
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Explain the physiologic mechanisms that give rise to the signs and symptoms of infectious illness. According to the CDC‚ 70-80% of people who become infected with West Nile virus do not develop any symptoms (CDC‚ 2013). The incubation period of WNV to the onswt of symptoms is 2 to 14 days hence most patients with the virus are asymptomatic and various cases go unreported. WNV has 3
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