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Latest Aedes aegypti Stories

2009-11-10 18:09:50

Human movement is a key factor of dengue virus inflow in Rio de Janeiro, according to results from researchers based at the Oswaldo Cruz Foundation (Fiocruz) in Brazil. The results, based on data from a severe epidemic in 2007-2008, contribute to new understanding on the dynamics of dengue fever in the second largest city in Brazil. Details are published November 10 in the open-access journal PLoS Neglected Tropical Diseases. Dengue fever is a major public health problem in many tropical...

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2009-10-28 08:53:52

Chemical ecologists in the Walter Leal lab at the University of California, Davis, have identified the dominant odor naturally produced in humans and birds that attracts the blood-feeding Culex mosquitoes, which transmits West Nile virus and other life-threatening diseases.  The groundbreaking research explains why mosquitoes shifted hosts from birds to humans and paves the way for key developments in mosquito and disease control. Entomology professor Walter Leal and postdoctoral...

2009-07-21 11:48:57

To control mosquito-borne diseases like dengue, researchers need to look at the behavior of people, not just the insect that transmits the disease, according to new research by Steven Stoddard of the University of California, Davis, and intercollegiate colleagues. The study, published July 21 in the open-access journal PLoS Neglected Tropical Diseases, exhibits work by an international, multidisciplinary team of vector biologists, sociologists and virologists studying dengue in Iquitos,...

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2009-06-05 15:55:00

Scientists use climate variables and vegetation indices to predict and mitigate Dengue epidemics in the American tropics-Dengue Fever (DF) and Dengue Hemorrhagic Fever (DHF) are the most important vector-borne viral diseases in the World. Around 50-100 million cases appear each year putting 2.5 billion people at risk of suffering this debilitating and sometimes fatal disease. Dengue Fever is prevalent in the Tropics. For that reason, an interdisciplinary team of researchers from the...

2009-06-04 10:15:06

In a drama played out across the southeastern U.S. in containers as small as a coffee cup, native and invasive mosquito larvae compete for resources and try to avoid getting eaten. One of the invasive mosquitoes, the Asian tiger mosquito (Aedes albopictus), can carry dengue fever, a viral disease that sickens 50 to 100 million people a year in the tropics, so this seemingly inconsequential struggle has implications for human health.In a new study in the British Ecological Society's Journal of...

2009-05-07 15:36:37

Australian scientists are blaming humans for their nation's dengue risks and say installing large water tanks in urban regions might make the problem worse. The researchers, led by Nigel Beebe from the University of Queensland, said such domestic water tanks would enable the dengue mosquito (Aedes aegypti) to regain its foothold across the country and expand its range of possible infections. Beebe and colleagues from the Commonwealth Scientific and Industrial Research Organization, the...

2009-05-05 08:22:05

'Drought-proofing' Australia's urban regions by installing large domestic water tanks may enable the dengue mosquito Aedes aegypti to regain its foothold across the country and expand its range of possible infections, according to a new study published May 5 in the open-access journal PLoS Neglected Tropical Diseases. Dr Nigel Beebe and colleagues from the University of Queensland, CSIRO Entomology, the Australian Army Malaria Institute, and the Communicable Diseases Branch of Queensland...

2009-05-02 09:32:36

Parasite speeds up mosquitoes Dengue fever is a terrible viral disease blighting many of the world's tropical regions. Carried by mosquitoes, such as Aedes aegypti, 40% of the world's population is believed to be at risk from the infection. What is more, previous exposure to other strains of the fever does not confer protection. In fact, subsequent infections are significantly worse, and can result in fatal dengue hemorrhagic fever. The lack of a functioning vaccine forced Scott O'Neill and...

2009-02-06 09:04:09

Isolongifolenone found as effective as DEET against mosquitoes and ticksIsolongifolenone, a natural compound found in the Tauroniro tree (Humiria balsamifera) of South America, has been found to effectively deter biting of mosquitoes and to repel ticks, both of which are known spreaders of diseases such as malaria, West Nile virus, and Lyme disease.  Derivatives of isolongifolenone have been widely and safely used as fragrances in cosmetics, perfumes, deodorants, and paper products, and...

2009-02-02 12:19:55

Australian scientists say hoarding water as climate change intensifies might aid the dengue fever-carrying mosquito Aedes aegypti in extending its range. The lead author of the study, Michael Kearney of the University of Melbourne, said climate change and evolutionary change could act together to accelerate and expand the mosquito's range. But human behavior in the form of storing water to cope with climate change is likely to have an even greater impact. The potential direct impact of...