Dengue encephalitis sir, dengue fever has variable clinical spectrum ranging from asymptomatic infection to lifethreatening dengue haemorrhagic fever and dengue shock syndrome. Dengue fever is a mosquitoborne tropical disease caused by the dengue virus. Dengue fever is a virus transmitted by the bite of infected aedes aegypti mosquitoes. The vaccine is only recommended in those who have previously had dengue fever or populations in which most people have been previously infected. Dengue fever frequently asked questions faq for early. Thus, there is a strong need to develop therapeutic strategies that can tackle this. Background information word origin may be derived from swahili or spanish 3 forms of dengue.
Download fulltext pdf download fulltext pdf dengue virus. Dengue alert visits to your health care practitioner is a must there is no specific treatment for classic dengue fever, and like most people you will recover completely within 2 weeks to help with recovery, health care experts recommend getting plenty of bed rest drinking lots of fluids taking medicine to reduce fever for severe dengue symptoms, including shock and. Dengue pronounced dengee fever is a painful, debilitating mosquitoborne disease caused by any one of four closely related dengue viruses. These may include a high fever, headache, vomiting, muscle and joint pains, and a characteristic skin rash. It requires urgent hospitalization as it may even lead to death. This disease used to be called breakbone fever because it sometimes causes severe joint and muscle pain that feels like bones are breaking. It is widespread across asia, the pacific, central and southern america and africa where these mosquitoes exist. Dengue outbreaks occur each year in north queensland following cases imported from overseas. What is dengue and how can you keep from getting it. In the tropics and subtropics, it is a leading cause of illness and death. Dengue fever df, dengue haemorrhagic fever dhf, and dengue shock syndrome dss arboviral infection transmitted by the aedes aegypti mosquito originates in african forests independent of humans breeds in water storage containers. Dengue is a viral disease transmitted by some types of mosquitoes.
The vaccine approach that is currently been evaluated at niaid for efficacy against dengue animal models and human trials is a weakened recombinant version liveattenuated of the dengue virus. The presence of disease and high prevalence of antibody to. Dengue is a disease caused by any one of four closely related dengue viruses denv1, denv2, denv3, and denv4. They are not indicated and can increase the risk of gi bleeding, hyperglycemia, and immunosuppression. Dengue is a disease caused by infection with one of the four dengue virus serotypes denv1, 2, 3, and 4. Dengue hemorrhagic fever is characterized by high fever, bleeding and liver enlargement. Platelet transfusions do not decrease the risk of severe bleeding and may instead lead to fluid overload and. Jan 20, 20 dengue virus infection has become a global threat affecting around 100 countries in the world. Currently, there is no licensed antiviral agent available against dengue. Management of dengue fever dengue hemorrhagic fever. This enveloped virus contains a positive singlestranded rna genome. Dengue is a systemic infectious disease of viral etiology, trans. Dengue fever is an infectious disease carried by mosquitoes and caused by any of four related dengue viruses. People get dengue from the bite of an infected mosquito.
Dengue hemorrhagic fever dhf and dengue shock syndrome dss are the severe andor fatal clinical manifestations of dengue fever. X dont give platelet transfusions for a low platelet count. How can you keep yourself or children you care for from getting it. There are four serotypes of dengue virus denv 14 that manifest with.
Fever, arthralgia, headache, petechial spots, rash and haemorrhagic manifestations. Denv is a member of flaviviridae family and is transmitted to humans by infected female aedes genus, especially aedes aegypti or aedes albopictus. Dengue fever and dengue hemorrhagic fever are viral diseases transmitted by aedes mosquitoes, usually aedes aegypti. Each denv has four or more genetic groups or genotypes.
Health experts have known about dengue fever for more than 200 years. Fever, arthralgia, headache, petechial spots, rash and haemorrhagic manifestations are common features. Mar 12, 2020 dengue is an infection caused by a virus. It takes a week or more for the dengue virus to replicate in the mosquito. Management of dengue fever and dengue hemorrhagic fever slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Soroepidemiologica retrospective analysis of dengue virus.
Aug 17, 2011 management of dengue fever and dengue hemorrhagic fever slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. During 19602010, a total of 22 countries in africa reported sporadic cases or outbreaks of dengue. Recovery of dengue4 viruses from mosquito vectors and patients during an epidemic of dengue hemorrhagic fever. Dengue is the most common vectorborne viral disease in the world, causing an estimated 50 to 100 million infections globally each year and 25,000 deaths. Other niaidfunded investigators are working to develop dengue vaccines using different live. Fisiopatologia del dengue pan american health organization. The mosquito becomes infected when it bites a person who has dengue virus in their blood. In a small proportion of cases, the disease develops into severe dengue, also known as dengue. Natural strain variation and antibody neutralization of dengue serotype3 viruses. Dengue fever frequently asked questions faq for early child care providers 11 march 2016 general questions about dengue fever 1. Extra information the ministry of health would like to remind the public to be vigilant towards vector borne diseases especially during the rainy season. Dengue fiebre hemorragica del dengue english version. Dec 10, 2014 background information word origin may be derived from swahili or spanish 3 forms of dengue. Treatment for dengue and dengue hemorrhagic fever is supportive.
The value of the vaccine is limited by the fact that it may increase the. Mosquitos are a disease carrying vectors that could infect the public such as dengue, malaria, chikungunyam filariasis and japanese encephalitis. Studies on dengue and dengue haemorrhagic feverdhf in. Symptoms typically begin three to fourteen days after infection. Guidelines on the prevention and control of dengue and dengue hemorrhagic fever in the americas. These mosquitoes acquire the virus while feeding on the blood of an infected person. Dengue vaccine is a vaccine used to prevent dengue fever in humans. If you continue browsing the site, you agree to the use of cookies on this website. Genotypespecific neutralization and protection by antibodies against dengue vir type 3. These viruses are related to the viruses that cause. Dengue viruses spread to humans by the bite of female mosquitoes. Soares, jose luis, health program, editora scipione, 2nd edition, 1994. Dengue fever is common in tropical areas, so take extra precautions if you travel somewhere with this type of climate.
The disease is caused by four serologically and genetically distinct viruses termed dengue virus denv 1, 2, 3 and 4. Dengue fever frequently asked questions faq for early child. Reported incidence of dengue has increased worldwide in recent decades, but little is known about its incidence in africa. Dengue virus denv infection is the wildest mosquitoborne infection affecting 2. Dengue is among the most important mosquitoborne viral disease in the world. This enveloped virus contains a positive singlestranded rna gen. Dengue fever is a virus transmitted to humans through bites from the aedes mosquito, a daybiting mosquito. Dengue management dos and donts x dont use corticosteroids. Dengue fever 3 associated problems dengue can occasionally affect several other body systems,15 either in isolation or along with the classic dengue symptoms. Comparison of dengue2 and dengue3 virus strains by neutralization tests and identification of a subtype of dengue3. Niaid researchers are actively engaged in the search for an effective vaccine against dengue fever. As of 2019, one version is commercially available, known as cydtdv, and sold under the brand name dengvaxia. In the last 50 years, dengue incidence has increased 30fold, worldwide.
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