Dengue Fever Transmission ::
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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 fever symptoms and signs include rash, fever, chills, fatigue, headache, and joint pain. Read about causes, vaccine, history, transmission, diagnosis and treatments, and see pictures of this mosquito-borne illness. 17.06.2014 · The successful transmission of dengue virus from a human host to a mosquito vector requires a complex set of factors to align. It is becoming increasingly important to improve our understanding of the parameters that shape the human to mosquito component of the transmission cycle so that vaccines and therapeutic antivirals can be fully evaluated and epidemiological models. Dengue fever is a mosquito-borne tropical disease caused by the dengue virus. Symptoms typically begin three to fourteen days after infection. This may include a high fever, headache, vomiting, muscle and joint pains, and a characteristic skin rash. Recovery generally takes two to seven days.

Dengue is endemic in more than 100 countries in Africa, the Americas, South-East Asia, the Western Pacific and the eastern Mediterranean. ECDC monitors the current dengue transmission worldwide. Dengue viruses are highly mobile, transported by infected travellers; all four serotypes now co-circulate in many cities around the world. In the context of locally acquired cases of dengue fever in southern France and Spain, this risk assessment considers the risk of onward vector-borne transmission locally and. Dengue, an acute febrile illness, is caused by infection with any of 4 related positive-sense, single-stranded RNA viruses of the genus Flavivirus, dengue viruses 1, 2, 3, or 4. TRANSMISSION. Almost all transmission occurs through the bite of infected Aedes mosquitoes, primarily. Dengue is a mosquito-borne viral disease that has rapidly spread in all regions of WHO in recent years. Dengue virus is transmitted by female mosquitoes mainly of the species Aedes aegypti and, to a lesser extent, Ae. albopictus.These mosquitoes are also vectors of chikungunya, yellow fever and Zika viruses. Dengue fever is most common in Southeast Asia and the western Pacific islands, but the disease has been increasing rapidly in Latin America and the Caribbean. Researchers are working on dengue fever vaccines. For now the best prevention is to reduce mosquito habitat in areas where dengue fever is.

Gubler DJ. Epidemic dengue/dengue hemorrhagic fever as a public health, social and economic problem in the 21st century. Trends Microbiol 2002; 10: 100-3. PubMed; Lindegren G, Vene S, Lundkvist Å, Falk KI. Optimized diagnosis of acute dengue fever in Swedish travelers by a combination of reverse transcription-PCR and immunoglobin M detection. Mode of transmission Dengue fever is transmitted to humans through the bites of infective female Aedes mosquitoes. When a patient suffering from dengue fever is bitten by a vector mosquito, the mosquito is infected and it may spread the disease by biting other people.

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