Forty percent of the worlds population, about 3 billion people, live in areas with a risk of dengue. The disease is often diagnosed incorrectly because the symptoms are similar to influenza and other viruses. Dengue is common in more than 100 countries around the world. Kabiul akhter ali, vbd consultant, uttar dinajpur, west bengal. It is a caused by a flavivirus with four distinct serotypes dv1, dv2, dv3, and dv4. In endemic areas, physicians do not conclusively diagnose dengue based on specific laboratory criteria, but instead use the dengue classical triad of symptoms of fever, rash and headache, a positive tourniquet test and the dengue classical triad observed in the complete blood count thrombocytopenia platelet 65,000, atypical lymphocytosis. Dengue is a major public health problem with more than 2. Symptoms typically begin three to fourteen days after infection. As both cell tropism and tissue tropism of denv are considered major determinants in the pathogenesis of dengue, there is a.
Nov 09, 2012 symptoms include fever, headache, muscle and joint pains, and a characteristic skin rash that is similar to measles. Dengue ppt1 free download as powerpoint presentation. Dengue fever virus infectious disease and antimicrobial agents. A female mosquito that takes a blood meal from a person infected with dengue fever becomes. The illness may progress to dengue hemorrhagic fever dhf.
Dengue ppt free download as powerpoint presentation. It is estimated that for week 36 of 2016 there have been a total of 8975 cases of dengue, 2081 of which correspond to severe dengue, with 11 deaths. Dengue fever powerpoint template is editable and ppt template can be customized according to the need and also the above dengue fever powerpoint template is very attractive and made. Dengue fever simple english wikipedia, the free encyclopedia. Dengue is a selflimited, flulike systemic arboviral disease transmitted between humans by aedes mosquitoes. Before it was partly cambodian and partly indie rock, explains williams of the bands evolution.
Impediments of reporting dengue cases in india sciencedirect. According to the who criteria, dengue fever df, dengue hemorrhagic fever dhf, and dengue shock syndrome dss were observed in 30. Other niaidfunded investigators are working to develop dengue vaccines using different live. Hi guys, we are going on our honeymoon with our 19month old to denerau island for 9 days in 2 weeks. Tell the client that there is no need to restrict foods and fluids. Prodrome of chills, erythematous mottling of the skin, and facial flushing a sensitive and specific indicator of dengue fever. Infection with the dengue virus can cause severe flulike symptoms. Symptoms include severe abdominal pain, vomiting, diarrhea, convulsions, bruising, and uncontrolled bleeding. Dengue fever in case you didnt know, integratron by. In a small proportion of cases, the disease develops into severe dengue, also known as dengue. Plunging headlong into their second decade as a band, dengue fevers new album, the deepest lake, their fifth fulllength of allnew material, comes at a critical juncture in the bands career.
Education, public health, integrated mosquito management. Infection with each of the four denv denv serotypes 14 is capable of causing dengue fever as well as severe dengue. It is also known as breakbone fever, since it can be extremely painful. The ppt templates are amazingly designed to make wonderful dengue fever powerpoint templates. Malaria and dengue fever prevention global volunteers.
The viruses are transmitted through the bite of infected aedes aegypti and aedes albopictus female mosquitoes that feed both indoors and outdoors during the. Dengue is a febrile illness that can have a fatal outcome in severe cases. Summary much remains to be learned about the pathogenesis of the different manifestations of dengue virus denv infections in humans. New dengue fever vaccine there is still no cure for dengue fever. Macelisa has become the most widely used serologic test for dengue. Fever typically abates with the cessation of viremia. Dengue fever is a virus transmitted to humans through bites from the aedes mosquito, a daybiting mosquito. Malaria and dengue fever prevention malaria and dengue fever, both preventable and potentially deadly diseases, are transmitted when children are bitten by mosquitoes. Dengue fever is a viral disease that is spread by infected mosquitoes. It leads to high fever, low platelets, bleeding, dengue. The rash typically begins on day 3 and persists 23 days. Symptoms of dengue hemorrhagic fever are fever that lasts from 2 to 7 days, vomiting blood, drowsiness, bleeding from nose or gums. About dengue fever before it was partly cambodian and partly indie rock, explains williams of the bands evolution. Dengue fever is also called breakbone fever, because it can cause so much pain that people feel like their bones are breaking most people with dengue fever can get better just by drinking enough.
We have just heard from the abc that there is a dengue fever outbreak with 15,000 infected and 11 dead so far. Dengue and dengue hemorrhagic fever clinical microbiology. Antibodydependent enhancement of dengue virus infection. Free download dengue fever powerpoint presentation. The rapidly expanding global footprint of dengue is a public health challenge with an economic burden. In some cases it leads to dengue haemorrhagic fever, also known as severe dengue, which affects the bodys vascular system how blood moves through the body. May 03, 2019 rash in dengue fever is a maculopapular or macular confluent rash over the face, thorax, and flexor surfaces, with islands of skin sparing. Feb, 2020 dengue fever incident rate malaysia 2018 by region projected number of people with dementia in malaysia 20152050 number of reported cases of cholera in malaysia 2006 to 2015. Dengue is often a leading cause of illness in areas.
Dengue fever incident rate malaysia 2018 by region projected number of people with dementia in malaysia 20152050 number of reported cases of cholera in malaysia 2006 to 2015. Infection with any of the four serotypes causes a similar clinical presentation that may. Dengue hemorrhagic fever is a rare but more severe form of dengue infection that can be fatal if not recognized and treated with supportive care. Dengue is a viral infection caused by four types of viruses denv1, denv2, denv3, denv4 belonging to the flaviviridae family.
Pathophysiology dengue hemorrhagic fever is a severe, potentially deadly infection spread by some mosquitos. Before check for the specific test ordered by the doctor. Evaluation of commercially available diagnostic tests for the. The uploader spent hisher valuable time to create this dengue fever powerpoint presentation slides, to share hisher useful content with the world. They may range from subclinical infection to dengue fever, dengue hemorrhagic fever dhf, and eventually dengue shock syndrome dss. Dengue fever and dengue hemorrhagic fever dhf are acute febrile diseases transmitted by mosquitoes, which occur in the tropics it can be lifethreatening, and are caused by four closely related virus serotypes of the genus flavivirus, family flaviviridae it is also known as breakbone fever, since it can be extremely painful dengue is transmitted to humans by the aedes stegomyia. Dengue fever is an infectious disease carried by mosquitoes and caused by any of four related dengue viruses. Laboratory diagnosis and diagnostic tests dengue ncbi.
Clinical presentation can range from a mild fever to classical dengue fever with. The above powerpoint ppt template is designed by expert designers. Aug 21, 2017 this video tells about warning signs, prevention and treatment of dengue fever and low platelets dengue fever is very common fever in india. As both cell tropism and tissue tropism of denv are considered major determinants in the pathogenesis of. Sep 21, 2017 closely related to dengue, yellow fever, japanese encephalitis, and west nile viruses. Dengue fever is a disease spread by the aedes aegypti mosquito and caused by one of four dengue viruses that are closely related. This may include a high fever, headache, vomiting, muscle and joint pains, and a characteristic skin rash. This disease used to be called breakbone fever because it sometimes causes severe joint and muscle pain that feels like bones are breaking.
Occasionally, and more commonly in children, the fever abates for a day and then returns, a. Mar 12, 2020 dengue is an infection caused by a virus. Dengue fever and dengue hemorrhagic fever dhf are acute febrile diseases transmitted by mosquitoes, which occur in the tropics. June 9, 2014 in case you didnt know, integratron by dengue fever is the theme music for snl korea parodies of grand theft auto. Children younger than 15 years usually have a nonspecific febrile syndrome, which may be accompanied by a maculopapular rash. Dengue fever virus spread by mosquitoes in the tropics. Global increase in urbanisation has facilitated endemicity of dengue, especially in asia and parts of south america. Polymorphism in transporters associated with antigen presentation and. Complications can lead to circulatory system failure and shock, and can be fatal also known as dengue shock syndrome.
Zika virus was first discovered in a monkey in the zika forest of uganda in 1947. Potential diagnostic for dengue fever outcomes based on. Dengue is the most widely distributed mosquitoborne viral infection of. Secondary infection by a different dengue virus serotype has been confirmed as an important risk factor for the development of dhf. Symptoms include fever, headache, muscle and joint pains, and a characteristic skin rash that is similar to measles. This video tells about warning signs, prevention and treatment of dengue fever and low platelets dengue fever is very common fever in india.
The who estimates that 50100 million cases of dengue infection occur annually, with approximately 500,000 of those cases resulting in dengue hemorrhagic fever dhf, with an estimated 22,000 deaths per year, mostly in children. The viruses that cause dengue fever are related to those that. In a small proportion of cases the disease develops into the lifethreatening dengue hemorrhagic fever, resulting in bleeding, low levels of blood platelets and blood plasma leakage, or into dengue shock syndrome, where. Dengue is believed to infect 50 to 100 million people worldwide in a year. An effective dengue vaccine is not yet available, but several vaccine candidates are currently being evaluated in clinical trials. Mairuhu at, mac gillavry mr, setiati te, soemantri a, ten cate h, brandjes dp, van. Dengue virus denv belongs to the family flaviviridae, genus flavivirus, and is. Infections can become an epidemic without adequate education on the dangers of mosquito bites in affected areas. Dengue is a mosquitoborne disease caused by any one of four closely related dengue viruses.
Primarily transmitted through the bite of an infected. Author summary dengue is a major public health problem especially in tropical and subtropical countries of asia and latinamerica. Itll protect you from dengue fever, a virus spread through mosquito bites. Power point presentation on dengue delhi health department.
Dengue is a selflimited, systemic viral infection transmitted between humans by mosquitoes. Regarding dengue haemorrhagic fever, equivalent to dengue with warning signs and severe dengue, in that same year, a total of 5626 cases were reported. Niaid researchers are actively engaged in the search for an effective vaccine against dengue fever. Clinical and laboratory diagnosis of dengue virus infection the. Dengue fever, also known as breakbone fever, is a mosquitoborne tropical disease caused by the dengue virus. Health experts have known about dengue fever for more than 200 years. Classis dengue acute febrile illness with headache, retroorbital pain, myalgia, arthralgia breakbone fever high fever 57 days second fever for 12 days in 5% patients followed by marked fatigue days to weeks classic dengue 1560% of infections nausea, vomiting, diarrhea 30% macular or maculopapular rash 50% respiratory symptoms. Evaluation of commercially available diagnostic tests for.
Dengue viruses are spread to people through the bite of an infected aedes species ae. The question why some patients develop dengue fever and others dengue haemorrhagic fever or dengue shock syndrome is continuously under investigation and. Dengue fever is common in tropical areas, so take extra precautions if you travel somewhere with this type of climate. Efficient and accurate diagnosis of dengue is of primary importance for clinical care i. Dengue fever pronounced dengi is a tropical infectious disease caused by the dengue virus. Serum after day 5 of fever, igm detection, macelisa, 12 d. Closely related to dengue, yellow fever, japanese encephalitis, and west nile viruses.
Rash in dengue fever is a maculopapular or macular confluent rash over the face, thorax, and flexor surfaces, with islands of skin sparing. Dengue fever is a mosquitoborne tropical disease that can develop into the lifethreatening dengue hemorrhagic feverdengue shock syndrome. Accurate countrylevel incidence data are crucial to assess the costeffectiveness of such vaccines and will assist policymakers in. It can be lifethreatening, and are caused by four closely related virus serotypes of the genus flavivirus, family flaviviridae. Igmcapture enzymelinked immunosorbent assay macelisa ndvbcp recommended iggelisa. Laboratory diagnosis 39 over, for technical reasons discussed below, the test procedure may be particularly useful for detecting viraemia after the subsidence of fever, or in situations where sample handling has not been optimal for virus culture. 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.
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