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Topic: Dengue virus

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	Dengue (Site not responding. Last check: 2007-10-26)
		Dengue virus, first isolated in 1943, is morphologically indistinguishable from the agent causing yellow fever.
		Dengue fever is usually mild and nonspecific in most children, associated with pharyngitis, rhinitis, mild cough, and fever for several days to a week.
		Prevention and control of dengue virus infection and its arthropod vector relies on insecticides, barrier measures protective clothing, bednetting, and insect repellents are advised.
	home.coqui.net /myrna/dengue.htm (933 words)

	Dengue virus disease - Blue Book: IDEAS - Victorian Government Health Information, Australia
		Dengue virus infection is diagnosed by a significant rise in antibodies to the dengue virus serotype.
		Dengue is not an endemic disease in Australia and the outbreaks which have occurred have been due to importations of the virus by a viraemic tourist or returning resident.
		Dengue is transmitted by the bite of an infected mosquito, particularly Aedes aegypti.
	www.health.vic.gov.au /ideas/bluebook/dengue.htm (930 words)

	Publications - Infectious - Dengue
		Dengue fever is a flu-like illness spread by the bite of an infected mosquito.
		Dengue hemorrhagic fever is a severe, often fatal, complication of dengue fever.
		Dengue and dengue hemorrhagic fever are caused by any of the dengue family of viruses.
	www.astdhpphe.org /dengue.asp (1008 words)

	Dengue Fever
		Dengue fever is a mosquito-borne disease caused by a virus.
		Dengue fever is spread by the bite of infected Aedes mosquitoes.
		Dengue fever is characterized by the rapid development of a fever that may last from five to seven days with intense headache, joint and muscle pain and a rash.
	www.state.sd.us /doh/Pubs/dengue.htm (289 words)

	Dengue virus: Break-bone fever
		The dengue virus is spread by the mosquito Aedes aegypti.
		Dengue's comeback was triggered by the arrival in South America of widespread vaccination for yellow fever in the 1950s and the scaling back of a worldwide anti-malaria initiative in the 1970s.
		Rothman, A.L. and Ennis, F.A. Immunopathogenesis of Dengue Hemorrhagic Fever.
	www.vaccinationnews.com /DailyNews/July2002/denguevirus18.htm (2657 words)

	DENGUE and Dengue Hemorrhagic fever (DHF) (Site not responding. Last check: 2007-10-26)
		Dengue pronounced Dengee, otherwise called break bone fever gets its name because it is a fever that is associated with rashes and severe aches and pains all over the body which leaves the patient with the belief that their bones have broken or about to break.
		Dengue is transmitted to humans by the mosquito Aedes aegypti (rarely Aedes albopictus).
		The dengue rash is characteristically bright red petichae and usually appears first on the lower limbs and the chest - in some patients, it spreads to cover most of the body.
	www.sunmed.org /dengue.html (1727 words)

	Dengue
		From feeding on an infected and viraemic human, the female mosquito is able to transmit the dengue virus after an incubation period of 8-10 days wherein virus infection, replication and dissemination result in infection of the salivary glands making the mosquito infective for life.
		Dengue is a debilitating infection of comparatively short duration with a high attack rate but a low fatality rate.
		Dengue virus occurs as four serotypes, designated DEN 1, 2, 3 and 4; each has been involved in both uncomplicated dengue and in cases with haemorrhagic syndrome.
	medent.usyd.edu.au /fact/dengue.htm (647 words)

	eMedicine - Dengue : Article Excerpt by: Gregory E Rauscher, MD (Site not responding. Last check: 2007-10-26)
		Background: Dengue fever is a mosquito-borne viral disease caused by 1 of 4 antigenically distinct dengue flaviviruses: dengue virus 1 (DEN-1), dengue virus 2 (DEN-2), dengue virus 3 (DEN-3), and dengue virus 4 (DEN-4).
		Dengue is a public health concern because most of the population in the tropical Americas is susceptible to infection.
		Dengue fever is usually underdiagnosed and frequently reported as influenza or measles because of the rash.
	www.emedicine.com /derm/byname/dengue.htm (663 words)

	Dengue, Dengue Viruses, Dengue Virus
		Dengue is a prevalent public health problem in SE Asia, the Caribbean, Central America, Northern South America and Africa.
		Reinfection with another dengue serotype (or other flaviviruses) usually produces a secondary (heterotypic) response characterized by very high titres to all 4 dengue virus serotypes and other flaviviruses, so that serological identification of the infecting agent is quite difficult if not impossible.
		Colorado tick fever is caused by a virus belonging to the family of Reoviridae.
	www.virology-online.com /viruses/Arboviruses8.htm (1365 words)

	Dengue Fever
		Dengue haemorrhagic fever is a potentially deadly complication that is characterized by high fever, haemorrhagic phenomena—often with enlargement of the liver—and in severe cases, circulatory failure.
		Dengue fever virus is considered the most important arbovirus in terms of morbidity, mortality and economic cost with an estimated 100 million cases of dengue fever occurring throughout the world annually.
		Dengue is transmitted by mosquito and occurs in epidemic and endemic proportions throughout tropical and subtropical regions of the world.
	www.sdnbd.org /dengue_fever.htm (2459 words)

	Dengue Fever
		Dengue fever is a type of arbovirus, which is short for arthropod-borne virus.
		The risk for being bitten by a mosquito that is carrying dengue fever is higher in Africa, Southeast Asia and China, the Indian subcontinent, the Middle East, South and Central America, the Caribbean Islands, Australia, and the South and Central Pacific.
		Dengue fever is considered "endemic" to certain regions, which means it is native to, or naturally occurring, in these areas.
	www.hmc.psu.edu /healthinfo/d/denguefever.htm (841 words)

	Dengue
		Dengue is caused by 4 closely related viruses transmitted by Aedes aegypti mosquitoes.
		Although scientists are still far from understanding why only some dengue infections lead to hemorrhagic disease, it is clear that factors such as age of the person and previous exposure to dengue infections increase risk of severe disease.
		Dengue viruses are transmitted throughout the year in Southwest Sri Lanka, although in some years an increase in the number of cases has been observed in the middle of the year (June-August) and/or towards the end of the year (Dec- Feb).
	www.unc.edu /~desilva/dengue.htm (655 words)

	Dengue/Dengue Hemorrhagic Fever: The Emergence of a Global Health Problem
		Dengue and dengue hemorrhagic fever (DHF) are caused by one of four closely related, but antigenically distinct, virus serotypes (DEN-1, DEN-2, DEN-3, and DEN-4), of the genus Flavivirus (1).
		Dengue is primarily an urban disease of the tropics, and the viruses that cause it are maintained in a cycle that involves humans and Aedes aegypti, a domestic, day-biting mosquito that prefers to feed on humans.
		This approach has been particularly detrimental to dengue control because, in most countries, surveillance is very inadequate; the system to detect increased transmission normally relies on reports by local physicians who often do not consider dengue in their diagnoses.
	www.cdc.gov /ncidod/EID/vol1no2/gubler.htm (1813 words)

	dengue (Site not responding. Last check: 2007-10-26)
		Dengue is a mosquito born infection that has become a global public health concern in recent years.
		Dengue only causes serious problems such as hemorrhagic fever and shock syndrome during the second infection of a different strain of the dengue virus.
		Because of the lack of cross protection between the dengue viruses, it is necessary to develop a vaccine protecting against all four dengue serotypes.
	www.stanford.edu /group/virus/retro/2000/dengue.html (469 words)

	UNC Health Care — Study traces global spread of virulent dengue virus to U.S. doorstep
		Dengue fever is also known as âbreakbone diseaseâ because of severe headache and joint pain associated with it.
		Dengue 3 virus isolates from hemorrhagic disease outbreaks in Mozambique in the mid-1980s were also closely related to the same hemorrhagic dengue virus isolates in Sri Lanka and Latin America.
		Unlike the West Nile virus, âwhich is very difficult to control because birds are the main reservoir, human-mosquito exposure is a lot less here, as most people live in air-conditioned housing.
	www.unchealthcare.org /site/newsroom/news/2003/Jun/dengue_virus (1195 words)

	MedlinePlus Medical Encyclopedia: Dengue hemorrhagic fever
		Dengue hemorrhagic fever is a severe, potentially fatal infection that occurs when someone with immunity to one type of Dengue virus is infected by a different type.
		Dengue hemorrhagic fever occurs when the patient contracts a different dengue virus after previous infection(s) by another type.
		Early symptoms of dengue hemorrhagic fever are similar to those of dengue fever, but after several days the patient becomes irritable, restless, and sweaty.
	www.nlm.nih.gov /medlineplus/ency/article/001373.htm (613 words)

	Dengue
		Dengue is a mosquito-transmitted acute disease caused by any of four virus serotypes (DEN-1, DEN-2, DEN-3, and DEN-4) and characterized by the sudden onset of fever, headache, myalgia, rash, nausea, and vomiting.
		Dengue serotype was identified by virus isolation for only one of the 17 cases as DEN-1.
		The incidence of DHF is increasing in the Americas: since 1984, dengue epidemics with associated cases of DHF have occurred in Aruba, Brazil, Colombia, El Salvador, French Guiana, Honduras, Mexico, Nicaragua, Puerto Rico, St. Lucia, Suriname, and Venezuela.
	www.intmed.mcw.edu /ITC/Dengue92.html (616 words)

	Dengue fever - WrongDiagnosis.com
		Dengue fever is an infectious disease carried by mosquitoes and caused by any of four related dengue viruses.
		Acute infectious, eruptive, febrile disease caused by four antigenically related but distinct serotypes of the dengue virus; transmitted by the bite of infected Aedes mosquitoes, especially A. aegypti; classical dengue (dengue fever) is self-limiting and characterized by fever, myalgia, headache, and rash; dengue hemorrhagic fever is a more virulent form of dengue virus infection.
		With a diagnosis of Dengue fever, it is also important to consider whether there is an underlying condition causing Dengue fever.
	www.wrongdiagnosis.com /d/dengue_fever/intro.htm (953 words)

	First-ever images of developing dengue virus obtained at Purdue
		The pair solved the structure of the mature dengue virus particle last year (see related story), and Rossmann said the new findings were a significant step toward unraveling the behavior of viruses.
		It is in examining the changes a virus undergoes– for example, in the case of dengue, how it uncaps its fusion peptides to become an infectious agent – that the team hopes to find clues to stopping the developmental process in its tracks.
		The metamorphosis the dengue particle undergoes is so radical, he said, that there is a possibility the immature form the team has seen is not actually a step in dengue's development.
	news.uns.purdue.edu /html4ever/030618.Rossmann.immature.html (1082 words)

	Dengue Fever Fact Sheet - CDC Division of Vector-Borne Infectious Diseases (DVBID)
		Dengue (DF) and dengue hemorrhagic fever (DHF) are caused by one of four closely related, but antigenically distinct, virus serotypes (DEN-1, DEN-2, DEN-3, and DEN-4), of the genus Flavivirus.
		In 2005, dengue is the most important mosquito-borne viral disease affecting humans; its global distribution is comparable to that of malaria, and an estimated 2.5 billion people live in areas at risk for epidemic transmission (Figure 4).
		This approach has been particularly detrimental to dengue control because, in most countries, surveillance is (just as in the U.S.) passive; the system to detect increased transmission normally relies on reports by local physicians who often do not consider dengue in their differential diagnoses.
	www.cdc.gov /ncidod/dvbid/dengue/index.htm (1944 words)

	Dengue/Dengue Hemorrhagic Fever MEDSTUDENTS-INFECTIOUS DISEASES (Site not responding. Last check: 2007-10-26)
		Dengue fever is an acute febrile infectious disease, caused by all four serotypes (1, 2, 3 or 4) of a virus from genus Flavivirus, called dengue virus.
		Diffuse cappilary leakage of plasma is responsible for the hemoconcentration.
		Postmortem diagnosis is made by virus isolation or by demonstration of viral antigen (direct immunofluorescence) from two-specimen visceral fragments (liver, spleen, linfonodes, thymus).
	www.medstudents.com.br /dip/dip3.htm (1702 words)

	Scientific FrontLine / Dengue Virus Reveals Its Circular Secret
		Dengue fever is endemic in many tropical and subtropical regions, causing a severe, flu-like illness that sickens more than 50 million people and kills 25,000 each year.
		Once a virus enters a host cell, its top priority is to copy its genetic code so that it can make more virus.
		Further studies of the dengue virus life cycle revealed another piece of the virus's RNA that recruits the enzyme RdRp.
	www.sflorg.com /sciencenews/scn080106_02.html (796 words)

	Genetically engineered mosquitoes show resistance to dengue fever virus
		In the study, the researchers exploited a vulnerability of the dengue virus to make the mosquitoes resistant to infection.
		At this point, the virus is vulnerable because of a naturally occurring protein called dicer-2.
		Dengue fever is endemic in more than 100 countries in Africa, the Americas, the Eastern Mediterranean, Southeast Asia and the Western Pacific.
	www.rxpgnews.com /research/infectiousdiseases/dengue/article_3615.shtml (865 words)

	Dengue virus
		Dengue's infection of monocytes (and possibly vascular endothelium) induces the release of cytokines that can lead to complications including shock.
		Rash and haemorrhaging from body orifices is accompanied by a drop in the platelet numbers (thrombocytopaenia) and sometimes disseminated intravascular coagulation (DIC).
		In children, Dengue Haemorrhagic Shock Syndrome (DHSS) is a dangerous complication in which fever is followed by collapse with shock, decreased blood pressure, and signs of haemorrhage as described above.
	www.uq.edu.au /vdu/VDUDengue.htm (173 words)

	Dengue fever - Wikipedia, the free encyclopedia
		Dengue fever (IPA: ['deŋgeɪ]) and dengue hemorrhagic fever (DHF) are acute febrile diseases, found in the tropics, with a geographical spread similar to malaria.
		However, one of the many ongoing vaccine development programs is the Pediatric Dengue Vaccine Initiative (PDVI) which was set up in 2003 with the aim of accelerating the development and introduction of dengue vaccine(s) that are affordable and accessible to poor children in endemic countries.
		The term "dengue" is a Spanish attempt at the Swahili phrase "ki denga pepo", meaning "cramp-like seizure caused by an evil spirit".
	en.wikipedia.org /wiki/Dengue_fever (1840 words)

	2005 dengue outbreak in Singapore - Wikipedia, the free encyclopedia
		In the 2005 dengue outbreak in Singapore, a significant rise in the number of dengue fever cases was reported in Singapore, becoming the country's worst health crisis since the 2003 SARS epidemic.
		In October 2005, there were signs that the dengue fever outbreak had peaked, as the number of weekly cases had declined and the outbreak of this infectious disease was under control by the end of 2005.
		Dengue fever is transmitted to humans by the mosquito Aedes aegypti.
	en.wikipedia.org /wiki/2005_dengue_outbreak_in_Singapore (2119 words)

	Dengue Fever & Dengue Hemorrhagic Fever
		Dengue is a disease primarily of the tropical and subtropical areas, caused by four closely related viruses.
		Epidemic dengue has been increasing since the 1980s, with the virus types and vector mosquitoes re-emerging and spreading in the tropics and sub-tropics worldwide.
		The WHO estimates that two fifths of the world's population are now at risk from dengue and that there may be 50 million cases of dengue infection worldwide every year.
	www.bg-sentinel.com /en/dengue.html (321 words)

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