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:2/14/2016)... ... February 14, 2016 , ... In ... Heart Failure Nurses (AAHFN) is promoting healthier living with heart failure by providing ... Life! Healthy Living with Heart Failure will kick-off February 14 and includes tips ...
(Date:2/13/2016)... (PRWEB) , ... February 13, 2016 , ... Many individuals ... of protein for a multitude of reasons. IsoPasta by Isolator Fitness has delved ... it once more, but without the high-carb repercussions. IsoPasta has 30 grams of ...
(Date:2/13/2016)... ... ... an Au Pair comes all the way around the world to provide child ... are often worried things won’t go well. More often than not, however, they find out ... the Year winner’s all commented how their Au Pairs have become a part of the ...
(Date:2/12/2016)... ... February 12, 2016 , ... The law firm of Morrow, Morrow, Ryan & ... purpose of these scholarships is to encourage applicants to pursue a degree in their ... these two parishes. , “We have available jobs in St. Landry and Evangeline ...
(Date:2/12/2016)... ... February 12, 2016 , ... Each year, the American Physical Therapy ... Anaheim, CA at the Anaheim Convention Center. Almost 10,000 physical therapists across the country ... in action, learn more about their chosen field and network with their colleagues. ...
Breaking Medicine News(10 mins):
(Date:2/11/2016)... -- MiMedx Group, Inc. (NASDAQ: MDXG ), the leading ... birth tissues, human skin and bone, and patent-protected processes ... and therapies, announced today that it will present at ... New York , NY.  Parker H. ... , Chief Financial Officer and Chris Cashman , ...
(Date:2/11/2016)... WESTPORT, Conn. , Feb. 11, 2016  AfterPill.com ... decision to recommend alcohol abstinence for all women who ... women in the U.S. each year and raises the ... --> --> According to the ... U.S., 70% of women of child-bearing age, who have ...
(Date:2/11/2016)... Feb. 11, 2016 Wearable posture tracker, ALEX , has taken Kickstarter by storm, crowdfunding ... seven days left to go, ALEX is said to be delivered to backers starting May of this ... ... ... Created by NAMU, a ...
Breaking Medicine Technology: