Navigation Links
Researchers develop the first climate-based model to predict Dengue fever outbreaks
Date:6/5/2009

CORAL GABLES, FL (June 5, 2009)--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 University of Miami (UM) and the University of Costa Rica have used global climatological data and vegetation indices from Costa Rica, to predict Dengue outbreaks in the region.

The new model can predict Dengue Fever epidemics with 83% accuracy, up to 40 weeks in advance of an outbreak and provide information on the magnitude of future epidemics. The model can be expanded to include the broader region of Latin America and the Caribbean, where incidence and spread of the disease has increased dramatically over the past 25 years.

An early warning system to prevent and mitigate the spread of the disease can potentially be developed using this model, explained Douglas O. Fuller, associate professor and chair of the department of Geography and Regional Studies in the UM College of Arts and Sciences and principal investigator of this project.

"Such a tool will provide sufficient time for public health authorities to mobilize resources to step up vector control measures, alert at-risk populations to impending conditions and help health professionals plan for increased case loads," Fuller said.

Vector-born diseases, such DF and DHF, are ones in which the disease is transmitted from an infected individual to another by a biological agent. In the case of Dengue, one of four closely related Dengue viruses is transmitted to humans by the Aedes aegypti or more rarely the Aedes albopictus mosquito, sometimes with other animals serving as intermediary hosts. Most of the world's population infected by Dengue (also known as "breakbone fever") is located in tropical and subtropical areas of the globe, where the weather is dominated by rainfall.

This project looks at climate and vegetation variables that have an impact on the mosquito populations in the American Tropics, such as El Nio Southern Oscillations, sea-surface temperatures and seasonal vegetation dynamics that affect evaporation and humidity near the ground.

"We were surprised that sea-surface temperature variations in the Pacific related to El Nio can be linked to a debilitating disease," Fuller said. "Now we see more clearly that global climate oscillations such as El Nio are important drivers of disease as well"

The study contributes to the rapidly emerging field of climate and infectious disease, which addresses increasing concerns that global warming, will exacerbate certain diseases like Dengue Fever and allow the vectors to spread to more temperate areas. The findings of this study were published earlier this year in the Institute of Physics journal Environmental Research Letters.

The model predicted a major Dengue epidemic of 2005 and has also been tested on data from Trinidad and Singapore with extremely accurate results, Fuller said. Other factors that may contribute to the increased occurrence of Dengue

Fever in the Tropics are: global trade, population growth and uncontrolled or unplanned urbanization.


'/>"/>

Contact: Marie Guma-Diaz@umiami.edu
m.gumadiaz@umiami.edu
305-284-1601
University of Miami
Source:Eurekalert  

Related medicine news :

1. Stanford researchers find culprit in aging muscles that heal poorly
2. UCLA researchers identify markers that may predict diabetes in still-healthy people
3. Mayo Clinic researchers discover new diagnostic test for detecting infection in prosthetic joints
4. Bipolar disorder relapses halved by Melbourne researchers
5. Cell that triggers symptoms in allergy attacks can also limit damage, Stanford researchers find
6. High and mighty: first common height gene identified by researchers behind obesity gene finding
7. Researchers estimate about 9 percent of US children age 8 to 15 meet criteria for having ADHD
8. Majority of 2.4 Million U.S. Children With ADHD Not Diagnosed or Consistently Treated, According to New Gold Standard Study by Cincinnati Childrens Researchers
9. Researchers develop long-lasting growth hormone
10. Jefferson immunology researchers halt lethal rabies infection in brain
11. Purdue researchers develop technology to detect cancer by scanning surface veins
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Researchers develop the first climate-based model to predict Dengue fever outbreaks
(Date:2/8/2016)... ... February 08, 2016 , ... Brenton Engineering , ... bags, and flow wrapped products at WestPack 2015, February 9-11, in Anaheim, California. ... up to semi-automatic or fully-automatic case packing with a small footprint, rugged, highly ...
(Date:2/8/2016)... ... February 08, 2016 , ... Tingley Rubber Corporation , ... provide its range of unique and advantaged protective solutions to a growing ... provide bilingual customer service and marketing support. A new distribution center in Brampton, ...
(Date:2/8/2016)... (PRWEB) , ... February 08, 2016 , ... ... Indianapolis, IN metro area, has selected the latest beneficiary of their ongoing community ... dedicated to preventing bullying in area schools. Donations are now being accepted at: ...
(Date:2/8/2016)... CA (PRWEB) , ... February 08, 2016 , ... Delta ... $792,000 to help combat pancreatic cancer. , Gary D. Radine, who recently retired as ... was the American Cancer Society’s 2015 CEO of the Year , helped lead ...
(Date:2/8/2016)... AUSTIN (PRWEB) , ... February 08, 2016 , ... Remember ... next time. , According to Perry A~, author of “Calcium Bentonite Clay” the ... a key role in balancing and detoxifying the body. , A former motivational speaker, ...
Breaking Medicine News(10 mins):
(Date:2/8/2016)...  Astellas Pharma Inc. President and Chief Executive Officer ... Robinson as president, Americas Operations, for Astellas US LLC, ... South America , effective April 1, 2016.  Robinson ... organization in the United States -- ... Yoshida , who is retiring in June 2016.  ...
(Date:2/8/2016)... BioPharma Corp. (CTI BioPharma) (NASDAQ and MTA:CTIC) today announced ... Food and Drug Administration (FDA) on February 4, 2016, ... on the clinical studies being conducted under the Company,s ... hold impacts part of the clinical work currently being ... clinical trials. --> ...
(Date:2/5/2016)... Feb. 5, 2016  Redwood Scientific Technologies, Inc. announced ... designed to help women balance their hormones. This product ... Jason Cardiff , President and CEO. ... to help the millions of women across the country ... of imbalanced hormones. Our research and development team is ...
Breaking Medicine Technology: