Dengue hemorrhagic fever
- Dengue hemorrhagic fever (DHF) is a specific syndrome that tends to affect children under 10 years of age. This complication of dengue causes abdominal pain, hemorrhage (bleeding), and circulatory collapse ( shock ). The prevention of dengue fever requires control or eradication of the mosquitoes carrying the virus that causes dengue.
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Dengue (DENG-gey) fever is a mosquito-borne disease that occurs in tropical and subtropical areas of the world. Mild dengue fever causes a high fever, rash, and muscle and joint pain. A severe form of dengue fever, also called dengue hemorrhagic fever, can cause severe bleeding, a sudden drop in blood pressure (shock) and death.Millions of cases of dengue infection occur worldwide each year. Dengue fever is most common in Southeast Asia and the western Pacific islands, but the disease has bee...
Many people, especially children and teens, may experience no signs or symptoms during a mild case of dengue fever. When symptoms do occur, they usually begin four to seven days after you are bitten by an infected mosquito.Dengue fever causes a high fever — 104 F degrees — and at least two of the following symptoms: 1. Headache 2. Muscle, bone and joint pain 3. Nausea 4. Vomiting 5. Pain behind the eyes 6. Swollen glands 7. RashMost people recover within a week or so. In some cases, symptoms...
Dengue fever is caused by any one of four types of dengue viruses spread by mosquitoes that thrive in and near human lodgings. When a mosquito bites a person infected with a dengue virus, the virus enters the mosquito. When the infected mosquito then bites another person, the virus enters that person's bloodstream.After you've recovered from dengue fever, you have immunity to the type of virus that infected you — but not to the other three dengue fever virus types. The risk of developing seve...
Factors that put you at greater risk of developing dengue fever or a more severe form of the disease include: 1. Living or traveling in tropical areas. Being in tropical and subtropical areas increases your risk of exposure to the virus that causes dengue fever. Especially high-risk areas are Southeast Asia, the western Pacific islands, Latin America and the Caribbean. 2. Prior infection with a dengue fever virus. Previous infection with a dengue fever virus increases your risk of having seve...
If severe, dengue fever can damage the lungs, liver or heart. Blood pressure can drop to dangerous levels, causing shock and, in some cases, death.
One dengue fever vaccine, Dengvaxia, is currently approved for use in those ages 9 to 45 who live in areas with a high incidence of dengue fever. The vaccine is given in three doses over the course of 12 months. Dengvaxia prevents dengue infections slightly more than half the time.The vaccine is approved only for older children because younger vaccinated children appear to be at increased risk of severe dengue fever and hospitalization two years after receiving the vaccine.The World Health Or...
Jul 08, 2017 · Dengue hemorrhagic fever can occur when someone is bitten by a mosquito or exposed to blood infected with the dengue virus. Infected mosquitoes are the most common causes.
Dec 27, 2018 · Dengue hemorrhagic fever (DHF): A syndrome due to the dengue virus that tends to affect children under 10, causing abdominal pain, hemorrhage (bleeding) and circulatory collapse . DHF starts abruptly with high continuous fever and headache plus respiratory and intestinal symptoms with sore throat , cough , nausea , vomiting , and abdominal pain .
Dengue hemorrhagic fever (DHF) is caused by the same viruses and is characterized by increased vascular permeability, hypovolaemia and abnormal blood clotting mechanisms. DHF is a potentially deadly complication with symptoms similar to those of dengue fever , but after several days the patient becomes irritable, restless, and sweaty.
Severe cases of dengue fever can develop into a condition called dengue hemorrhagic fever. Patients who have dengue hemorrhagic fever have the same symptoms of dengue fever. However, when the fever goes down, the patient can have more serious symptoms, including continuous vomiting, severe abdominal pain and difficulty breathing.
Dengue hemorrhagic fever is a complication of dengue fever, which is a dangerous virus spread through mosquito bites. People most at risk for this difficult condition have usually already had a case of dengue fever, or elevated risk exists for children, and for women, particularly of Caucasian descent.
Dengue fever/ dengue hemorrhagic fever is the most important arboviral disease of humans. In the past 30 years, there has been a dramatic global reemergence of dengue fever with expanding geographic distribution of both the viruses and the mosquito vectors, resulting in increased epidemic activity and the emergence of dengue hemorrhagic fever.
- The dengue virus is transmitted by mosquitoes and cannot be transmitted from human-to-human. Mosquitoes transmit the dengue virus. When a mosquito bites a dengue fever or dengue hemorrhagic fever infected person, the mosquito becomes the host of the virus that later transmits the virus to the next person it bites.
- Not all species of mosquitoes can carry the dengue virus. There are over 3.500 species of mosquitoes throughout the world, but not all mosquitoes can carry the dengue virus.
- Be wary of flu-like symptoms accompanied by extreme joint and muscle pain and bleeding. Dengue fever and dengue hemorrhagic fever shows its symptoms in almost flu-like symptoms.
- What are the causes of dengue fever and dengue hemorrhagic fever? As mentioned previously, dengue fever and dengue hemorrhagic fever is caused by the dengue virus that is transmitted by mosquitoes to humans.
Dengue fever virus (DENV) is an RNA virus of the family Flaviviridae; genus Flavivirus.Other members of the same genus include yellow fever virus, West Nile virus, Zika virus, St. Louis encephalitis virus, Japanese encephalitis virus, tick-borne encephalitis virus, Kyasanur forest disease virus, and Omsk hemorrhagic fever virus.
Dengue viruses are spread to people through the bite of an infected Aedes species (Ae. aegypti or Ae. albopictus) mosquito. Dengue is common in more than 100 countries around the world. Forty percent of the world’s population, about 3 billion people, live in areas with a risk of dengue. Dengue is often a leading cause of illness in areas with ...