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MedlinePlus Medical Encyclopedia: Dengue hemorrhagic fever Dengue hemorrhagic fever is a severe, potentially deadly infection spread by certain mosquitoes (Aedes aegypti). Early symptoms of dengue hemorrhagic fever are similar to those of dengue fever, but after several days the patient becomes irritable, restless, and sweaty. Because Dengue hemorrhagic fever is caused by a virus for which there is no known cure or vaccine, the only treatment is to treat the symptoms. www.nlm.nih.gov /medlineplus/ency/article/001373.htm   (571 words)

Bolivian hemorrhagic fever - Wikipedia, the free encyclopedia Bolivian hemorrhagic fever (BHF), also known as fl typhus or Machupo virus, is a hemorrhagic fever and zoonotic infectious disease occurring in Bolivia. Petechiae (blood spots) on the upper body and bleeding from the nose and gums are observed when the disease progresses to the hemorrhagic phase, usually within seven days of onset. A vaccine being developed for the genetically related Junin virus which causes Argentine hemorrhagic fever has shown evidence of cross-reactivity with Machupo virus and may be an effective prophylactic measure for people at high risk of infection. en.wikipedia.org /wiki/Bolivian_hemorrhagic_fever   (270 words)

Viral hemorrhagic fever - Wikipedia, the free encyclopedia Viral hemorrhagic fevers (VHFs) are a group of illnesses that are caused by several distinct families of viruses: Arenavirus, Filoviridae, Bunyaviridae and Flavivirus. Examples include Lassa fever, Marburg virus, Ebola virus, Bolivian haemorrhagic fever, Korean hemorrhagic fever, Crimean-Congo hemorrhagic fever and Dengue hemorrhagic fever. Orientale, Congo villages of Durba and Watsa were the epicenter of the 1998–2000 outbreak of Marburg hemorrhagic fever. en.wikipedia.org /wiki/Hemorrhagic_fever   (165 words)

NTI: Hemorrhagic fever virus While this group includes many different kinds of clinical symptoms and epidemiology, hemorrhagic fever viruses are generally characterized by profuse bleeding in the tissues. For purposes of BW, hemorrhagic fevers that have been researched are in fact those that are easily grown in tissue culture and have demonstrated clinical infections by aerosols. Hemorrhagic fevers can attack the lining of the vascular system, as well as infecting and destroying cells in vital organs. www.nti.org /e_research/profiles/NK/Biological/242.html   (370 words)

Are Doctors Ready for Bioterrorism? - Hemorrhagic Fever Viruses Hemorrhagic fever viruses are highly infectious by aerosol; are associated with high morbidity and, in some cases, high mortality; and are thought to pose a serious risk as biologic weapons.29 All suspected cases of HFV infection should be reported immediately to the local or state health department and the hospital epidemiologist. Ebola and Marburg viruses may cause a hemorrhagic diathesis and tissue necrosis through direct damage to vascular endothelial cells and platelets with impairment of the microcirculation, as well as cytopathic effects on parenchymal cells, with release of immunologic and inflammatory mediators. Illness caused by Ebola, Marburg, Rift Valley fever virus, yellow fever virus, Omsk hemorrhagic fever virus, and Kyasanur Forest disease virus are characterized by an abrupt onset, whereas Lassa fever and the diseases caused by the Machupo, Junin, Guarinito, and Sabia viruses have a more insidious onset. my.webmd.com /content/article/61/67291.htm   (1248 words)

Viral Hemorrhagic Fever - Viral hemorrhagic fevers (VHFs) refer to a group of illnesses that are caused by several distinct families of viruses. In general, the term "viral hemorrhagic fever" is used to describe a severe multisystem syndrome (multisystem in that multiple organ systems in the body are affected). For those hemorrhagic fever viruses that can be transmitted from one person to another, avoiding close physical contact with infected people and their body fluids is the most important way of controlling the spread of disease. library.adoption.com /Health-Issues/Viral-Hemorrhagic-Fever/article/4589/1.html   (1464 words)

Viral Hemorrhagic Fever Viral hemorrhagic fever is the collective name given to the diseases caused by a group of viruses such as Ebola virus and Marburg virus. The mortality rates are 50-80% for Ebola virus hemorrhagic fever and 30% for Marburg virus hemorrhagic fever. There is no known treatment for Ebola virus or Marburg virus hemorrhagic fever. healthlink.mcw.edu /article/955159073.html   (649 words)

NGC - NGC Summary However, in the context of infection with viral hemorrhagic fever of unknown cause or secondary to an arenavirus or Rift Valley fever, the working group believes that the benefits likely outweigh the risks of ribavirin therapy, and it is therefore recommended as described in Table 4 in the original guideline document. If a temperature of 101 degrees F (38.3 degrees C) or higher develops, ribavirin therapy should be initiated promptly as presumptive treatment of viral hemorrhagic fever, as described in Table 4 in the original guideline document, unless an alternative diagnosis is established or the etiologic agent is known to be a filovirus or a flavivirus. The hemorrhagic fever viruses described herein (including Rift Valley fever and the flaviviruses) are highly infectious in the laboratory setting and may be transmitted to laboratory personnel via small-particle aerosols. www.guideline.gov /summary/summary.aspx?ss=15&doc_id=3224&nbr=2450   (5204 words)

HighBeam Encyclopedia - hemorrhagic fever HEMORRHAGIC FEVER [hemorrhagic fever], any of a group of viral diseases characterized by sudden onset, muscle and joint pain, fever, bleeding, and shock from loss of blood. The causative viruses may be transmitted to humans by insects, ticks, or rodents, but in the case of the African hemorrhagic fevers, Ebola and Marburg, the animal carrier is unknown. Dengue hemorrhagic fever, also spread by mosquitoes, has in recent years caused many fatalities among children in tropical countries. www.encyclopedia.com /html/h1/hemorfev.asp   (574 words)

fever Q fever (Worldwide): Q fever is a rickettsial zoonosis (infection with gram negative Coxiella burnetii) contracted primarily from inhalation of dust contaminated by infected animals, especially sheep, cattle, and goats; and also other mammals. Trench fever is characterized by abrupt onset of fever, headache, myalgia, malaise, and often aseptic meningitis. Yellow fever (most of tropical and subtropical South America and Africa): Yellow fever (YF) is caused by an arbovirus transmitted by the Aedes aegypti mosquito from one human to another (the urban form of YF) or from monkeys to humans (the jungle or sylvan form of YF). www3.baylor.edu /~Charles_Kemp/fever.htm   (5022 words)

Are Doctors Ready for Bioterrorism? - Hemorrhagic Fever Viruses Hemorrhagic fever viruses are highly infectious by aerosol; are associated with high morbidity and, in some cases, high mortality; and are thought to pose a serious risk as biologic weapons.29 All suspected cases of HFV infection should be reported immediately to the local or state health department and the hospital epidemiologist. Ebola and Marburg viruses may cause a hemorrhagic diathesis and tissue necrosis through direct damage to vascular endothelial cells and platelets with impairment of the microcirculation, as well as cytopathic effects on parenchymal cells, with release of immunologic and inflammatory mediators. Illness caused by Ebola, Marburg, Rift Valley fever virus, yellow fever virus, Omsk hemorrhagic fever virus, and Kyasanur Forest disease virus are characterized by an abrupt onset, whereas Lassa fever and the diseases caused by the Machupo, Junin, Guarinito, and Sabia viruses have a more insidious onset. www.webmd.com /content/article/61/67291.htm   (1248 words)

AllRefer Health - Ebola Hemorrhagic Fever (Ebola Virus Infection, Viral Hemorrhagic Fever) Ebola hemorrhagic fever is a severe illness likely transmitted to humans from infected animals and animal materials. Ebola hemorrhagic fever (Ebola fever) is a viral disease that has been limited to parts of Africa. Hemorrhaging generally occurs from the gastrointestinal tract, causing the patient to bleed from both the mouth and rectum. health.allrefer.com /health/ebola-hemorrhagic-fever-info.html   (359 words)

Dengue/Dengue Hemorrhagic Fever MEDSTUDENTS-INFECTIOUS DISEASES 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. The term ‘hemorrhagic’ is imprecise, because what characterizes this form of the disease is not the presence of hemorrhagic manifestations, but the abrupt increase of capillary permeability, with diffuse capillary leakage of plasma, hemoconcentration and, in some cases, with non-hemorrhagic hypovolemic shock (dengue shock syndrome). Fever in malaria is initially of daily presentation, and spleen may be enlarged and tender; jaundice may also be present. www.medstudents.com.br /dip/dip3.htm   (1702 words)

eMedicine - Hemorrhagic Fever With Renal Failure Syndrome : Article by Vellore K Sairam, MBBS Korean hemorrhagic fever, a severe type of HFRS observed in Asia, is caused by a Hantavirus and is transmitted by the infected Apodemus agrarius mouse (striped field mouse). Balkan hemorrhagic fever, a severe type of HFRS observed in Balkan countries, is caused by the Dobrava virus and is transmitted by the infected Apodemus flavicollis mouse (yellow-necked field mouse). In high-risk geographic areas, hemorrhagic fever with renal failure syndrome should be included in the differential diagnosis of acute renal failure of uncertain cause associated with febrile illness, hemorrhagic phenomenon, or renal or hepatic dysfunction. www.emedicine.com /ped/topic968.htm   (3898 words)

Hemorrhagic Fever Viruses FAQ, 2005 - Center for Biosecurity of UPMC - Bioterrorism, Biodefense, Public Health ... The hemorrhagic fever viruses (HFVs) are a diverse group of viruses capable of causing a "viral hemorrhagic fever syndrome". As a group, hemorrhagic fever viruses are found naturally over much of the globe (see table), and are typically found in the same location as their particular host species. The hemorrhagic fever viruses are transmitted to humans via contact with infected animal reservoirs or arthropod vectors. www.upmc-biosecurity.org /pages/agents/vhf/vhf_faq_2005.html   (701 words)

Ebola Hemorrhagic Fever Facts Ebola hemorrhagic fever is caused by several Ebola viruses. Ebola hemorrhagic fever is one of the deadliest of a group of diseases called viral hemorrhagic fevers. Viral hemorrhagic fevers are caused by viruses from four families: filoviruses, arenaviruses, flaviviruses, and bunyaviruses. www.astdhpphe.org /infect/ebola.html   (891 words)

Crimean-Congo hemorrhagic fever definition - Medical Dictionary definitions of popular medical terms Crimean-Congo hemorrhagic fever: A viral disease characterized by hemorrhage (bleeding) and fever. The onset of symptoms from CCHF is sudden with fever, myalgia (aching muscles), dizziness, neck pain and stiffness, backache, headache, sore eyes and photophobia (sensitivity to light). And in 1969 it was recognized that the virus causing Crimean hemorrhagic fever was the same as that responsible for the illness identified in the Congo. www.medterms.com /script/main/art.asp?articlekey=13303   (998 words)

Dengue Fever - Digestion and digestive-related information on MedicineNet.com Dengue fever is a disease caused by a virus that is transmitted by mosquitos. It is an acute illness of sudden onset that usually follows a benign course with headache, fever, prostration, severe joint and muscle pain, swollen glands (lymphadenopathy) and rash. Hence, the name "breakbone fever." Slaves in the West Indies who contracted dengue were said to have "dandy fever" because of their postures and gait. www.medicinenet.com /dengue_fever/article.htm   (533 words)

Dengue hemorrhagic fever Information on Healthline Early symptoms of dengue hemorrhagic fever are similar to those of dengue fever, but after several days the patient becomes irritable, restless, and sweaty. Because Dengue hemorrhagic fever is caused by a virus for which there is no known cure or vaccine, the only treatment is to treat the symptoms. Call your health care provider if you have symptoms of dengue fever and have been in an area where dengue fever is known to occur. www.healthline.com /adamcontent/dengue-hemorrhagic-fever   (625 words)

Dengue and Dengue Hemorrhagic Fever Alternatively the decline in fever may be followed 1 to 3 days later by a resurgence of fever and symptoms, giving a "saddleback" appearance to the temperature curve. Patients with significant hemorrhage or signs of increased capillary permeability such as hemoconcentration, effusions, edema or low serum albumin, as well as patients with mental status changes or with abnormal fluid and electrolyte balance, should be hospitalized and may require admission to an intensive care unit. The 1986 dengue fever outbreak in Puerto Rico: I. Epidemiologic and clinical observations. wonder.cdc.gov /wonder/prevguid/p0000373/p0000373.asp   (3509 words)

Marburg Hemorrhagic Fever   (Site not responding. Last check: 2007-10-26) Marburg hemorrhagic fever is a rare, severe type of hemorrhagic fever which affects both humans and non-human primates. Onset of the disease is sudden, marked by fever, chills, headache, and myalgia. Recovery from Marburg hemorrhagic fever may be prolonged and accompanied by orchitis, recurrent hepatitis, transverse myelitis or uveitis. www.doh.gov.ph /marburg_virus.htm   (760 words)

AllRefer Health - Dengue Hemorrhagic Fever (Dengue Shock Syndrome, Hemorrhagic Dengue, Philippine 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. Four different Dengue viruses have been implicated in both Dengue fever and Dengue hemorrhagic fever. Dengue hemorrhagic fever occurs when the patient contracts a different Dengue virus after previous infection(s) by another type. health.allrefer.com /health/dengue-hemorrhagic-fever-info.html   (426 words)

Dengue Fever and Dengue Hemorrhagic Fever - Boston College   (Site not responding. Last check: 2007-10-26) Dengue fever is a febrile illness caused by an RNA flavivirus that is spread by the bites of mosquitoes. Whereas dengue fever is rarely fatal, dengue hemorraghic fever is a severe disease that leads to death in approximately 5% of cases. This explanation is supported by the observations that dengue hemorraghic fever is most common in individuals who previously had dengue fever, and that dengue hemorraghic fever is much more common in residents of endemic areas than in visitors to endemic areas. www.bc.edu /schools/cas/biology/research/insect/dengue   (1376 words)

Dengue hemorrhagic fever - WrongDiagnosis.com With a diagnosis of Dengue hemorrhagic fever, it is also important to consider whether there is an underlying condition causing Dengue hemorrhagic fever. The prognosis of Dengue hemorrhagic fever may include the duration of Dengue hemorrhagic fever, chances of complications of Dengue hemorrhagic fever, probable outcomes, prospects for recovery, recovery period for Dengue hemorrhagic fever, survival rates, death rates, and other outcome possibilities in the overall prognosis of Dengue hemorrhagic fever. Prevention information for Dengue hemorrhagic fever has been compiled from various data sources and may be inaccurate or incomplete. www.wrongdiagnosis.com /d/dengue_hemorrhagic_fever/intro.htm   (598 words)

Marburg Hemorrhagic Fever - Health and Medical Information produced by doctors - MedicineNet.com Relatively little is known about the rare Marburg virus, which has only caused sporadic cases of hemorrhagic fever in the decades since its discovery. It is also unknown how the animal host transmits the virus to humans, but humans with Marburg hemorrhagic fever may pass the disease to other people, probably through contact with bodily fluids and secretions. The signs and symptoms of Marburg hemorrhagic fever strike suddenly 5 to 10 days after infection with the virus and usually include fever, chills, headache, and myalgia (muscle aches). www.medicinenet.com /script/main/art.asp?articlekey=46585   (577 words)

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