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Hantavirus quizlet
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Hantavirus
Hantavirus is a virus in the Bunyaviridae family of viruses. Dr. Lee Ho Wang from Korea discovered Hantavirus in the early 1950s. Though the virus is commonly found in rodents, it does not cause disease in the rodents. Disease results when the virus is transmitted to humans. A common way of contracting Hantavirus is from breathing in dust that has been contaminated by an infected rodent’s saliva, feces or urine or the infected dust gets into broken skin. It is also transmitted by the bite of an infected rodent. So far, it has not been confirmed that Hantavirus can be passed on from person to person. The most common places to contract Hantavirus are Korea, China or most countries in Asia. In Korea, Hantavirus seems to have two major “seasons;” May to June and October to November are the times of year when the disease is more prevalent because the rodent populations are higher during these times. There are two forms of Hantavirus, the mild illness found in Scandinavia, and the more severe illness found in the Far East and Central Europe.
There are many symptoms of Ha...
This extremely pathogenic zoonotic virus is now understood to travel from bat species, to equine intermediate hosts, to humans.[8, 10] The Hendra virus is listed as a Bio-Safety Level (BSL)-4, and can only be studied at a few adequately equipped laboratories worldwide due to its virulence.[1, 2] Case fatality rates
This virus is similar to Ebola, because it started in the same place. Lab workers in Germany, in 1967, contracted the new virus while working with African Green Monkeys, which had the virus. The virus is described as a hemorrhagic fever. It has a fatality rate up to 90% and spreads through human to human contact. The first symptoms can be as simple as a fever and a headache, then can progress to organ failure, and fatal internal bleeding.
The Panic Virus: A True Story of Medicine, Science, and Fear written by Seth Mnookin offers something for all potential readers. For those who are anti-vaccine, Mnookin offers valid science, testimony, history, and excerpts that demonstrate that vaccinating a child can be more beneficial than not. Instead of simply dismissing those who do not vaccinate their children, Mnookin offers valid points to counter argue in this debate. Mnookin offers thought, logic, reasoning, and research into his arguments, showing that his opinion is rooted in fact, rather than opinion or belief. Those who are on the fence about vaccination may find this book useful in that Mnookin not only offers plenty valid points about pro-vaccination, however, he also provides
Hepatitis A is a usually short-acting virus that occurs in humans and monkeys. It is caused by the Hepatovirus and the species is Hepatitis A Virus. There are two major ways in which hepatitis A can be transmitted. One way is from person to person. This transmission occurs when the fecal matter of an infected person gets ingested by another person.
Potato virus X (PVX) is a plant RNA virus. Its infection cycle includes invasion of the host plant, RNA replication, translation of viral proteins, cell-to-cell movement and release of new virions. Upon infection, PVX releases its plus-strand RNA genome from the virion and produces a viral replicase using host translation machinery. The replicase synthesizes minus-strand RNA. Subsequently new plus-strand genomic RNA (gRNA) and subgenomic RNAs (sgRNAs) are produced. Movement and coat proteins are translated from the sgRNAs for encapsidation and movement through plasmodesmata. In this mini-review, all aspects of the virus infection cycle of PVX are discussed.
Fig. 1. Fine epitope mapping of anti-H5 2A-scFvFc antibody. A. Flow cytometry profiles for immunoreactivity of single-clone HA1-M mutants displayed on the surface of yeast. Single point mutations that abolish yeast surface binding of anti-H5 2AscFvFc were analyzed and mapped to distinct regions of HA1. B. Schematic representation of the epitopes recognized by anti-H5 2AFc to HA1 on the yeast surface. Amino acid positions are designated in H5 numbering. A linear epitopes (aa 206-211) recognized by 2AFc is colored in red. The regions encompassing the receptor-binding domain are colored in cyan.
The World Health Organization states that Marburg Virus Disease (MVD) was first apparent in 1967 in Germany, specifically in the Marburg and Frankfurt areas of Germany, hence the name, Marburg virus. The transporters of this disease were believed to have been monkeys from Uganda, and it is a very deadly and fatal disease in which the virus is similar in strain as the one that causes the Ebola virus. Although rare, MVD has the ability to be extremely deadly within an infected society. Outbreaks can prove to be dramatic and if not communicated within the proper societal channels, can be overwhelming to the human race. Outbreaks in history from the Marburg virus have been contained appropriately however, it is vital for health and protection agencies to collaborate in order to contain any future “accidental” or “man-made” outbreaks (World Health Organization, 2012).
Samples of tissue from patients infected with the mysterious disease were sent to the CDC Special Pathogens Branch for analysis. After a few weeks and several tests, the virologists linked the disease with an unknown type of hantavirus. Because other hantaviruses were known to be transmitted to people by inhalation or ingestion of rodent feces or urine, our next task was to collect as many species of rodent in the area as possible in order to pinpoint the source of the virus (AMNH). While trapping rodents, we decided that it was worth the risk to not wear protective clothing or masks so as to avoid alarming residents of "The Four Corners" region (CDC). After testing approximately 1,700 rodents we had found a link--the prevalent deer mouse carried the unknown type of hantavirus. But why was this mouse suddenly infecting people in this region? I was becoming frustrated, my years of work in medicine were failing me and I couldn't figure out why these people kept getting sick.
is spread to humans by fleas from infected rodents. In the 1300s, fourth of the population
The hanta virus is usually transmitted by a species of mice commonly known as deer mice, or Peromyscus maniculatis. The mice are described as having "brownish-gray fur, a white stomach and disproportionately large ears" (www.slac.stanford.edu). An infected mouse can spread the hanta virus if a human comes in contact with its urine, feces, saliva or dead body. Inhalation of the dust or tiny particles that spread into the air when any of the above are touched...
There are different species of trichinella that can cause human disease, which has much disturbance worldwide. There are several species of trichinella that have been discovered. They include T. pseudospiralis (mammals and birds worldwide), T. nelsoni (African predators and scavengers), T. native (Artic bears), and T. britovi (carnivores of western Asia and Europe) (CDC, 2012). In the United States, there are less cases reported now than in the past. In the 1940’s, the United States Public Health Services began tracking the number of trichinellosis cases. There were 400 cases in the United States each year on average (CDC, 1997-2001). From 2008 to 2010, 20 cases were reported each year on average (CDC, 2012).
Hvistendahl, M, Cohen, J et. al. 2013. ‘New Flu Virus in China Worries and Confuses’ Science 340: 129-130
Viruses can be transmitted in many ways. Being in contact with an infected person will most likely transfer the virus. One can also obtain the virus through swallowing, inhaling, and unsafe sex. Poor hygiene and eating habits usually increase the risk of catching a viral infection. Contracting a viral infection is followed by adverse s...
This paper reviews the causes, diagnosis, and treatment of canine parvovirus 2-strain c (CPV-2c), a viral infection that affects dogs of a variety of ages, mainly puppies or unvaccinated adult dogs. As a virus, CPV-2c is resilient; the replication of CPV-2c in rapidly dividing cells facilitates acute-onset of the virus. Conventional detection of CPV-2c consists of systemic symptoms, a thorough patient history, and diagnostic testing. Although symptoms presented in the right patient are distinct, most veterinarians do not recommend diagnosis solely based on clinical symptoms; will typically run a fecal test before advancing to treatment options. Pharmacotherapy performed to relieve pain, nausea and other symptoms of CPV-2c is the best treatment
Marburg hemorrhagic fever (Marburg HF) is a rare but acute hemorrhagic fever that affects both humans and primates. Transmission is mainly human-to-human, resulting from close contact with the blood, secretions, organs or other bodily fluids of infected persons. Illness caused by Marburg virus begins abruptly, with high fever, severe headache and severe malaise. The individuals at the highest risk of transmission include family members and hospital staff who care for patients infected with Marburg virus. Individuals who have close interaction with African fruit bat, human patients, or non-human primates disease-ridden with Marburg Virus are at risk. The variance diagnoses usually consist of malaria, typhoid fever, shigellosis, cholera,