Navigation Links
Warmer temperatures fuel spread of malaria into higher elevations
Date:3/6/2014

rs, Pascual explains: changes in temperature, rainfall, land use, the parasite's resistance to antimalarial drugs, and mosquito-control measures all affect transmission of the disease. "When you're looking at long-term trends, it's difficult to attribute change to specific factors," she says.

So instead of analyzing long-term trends, Pascual and graduate students Mauricio Santos-Vega and Amir Siraj decided instead to compare malaria cases year-to-year, in two regions that had kept detailed records of the times and locations of infections. Working with colleagues at the University of London, the Oromia Regional Health Bureau in Ethiopia, and Columbia University in New York, they mapped the geographical distribution of malaria cases in the Antioquia region of western Colombia from 1990 to 2005 and the Debre Zeit area of central Ethiopia from 1993 to 2005 before intense intervention efforts had begun. For each region, they analyzed how distribution along elevation gradients changed from one year to the next, then looked for statistical associations to fluctuations in annual average temperatures.

Their analysis showed that the distribution of malaria cases shifted to higher elevations in warmer years. When temperatures cooled, the distribution of cases retreated to lower elevations.

Pascual and her colleagues also used their analyses to consider the increasing prevalence of malaria in Antioquia and Debre Zeit during the 1980s and 1990s, and found that changing temperatures could account for those long-term trends. "In those decades, we are already observing an effect of climate change," says Pascual.

The impact of ongoing climate change will be large, she says. In Ethiopia alone, 37 million people live at altitudes of 1,600 to 2,400 meters (5,249 to 7,874 feet), the range the team analyzed in their study of Debre Zeit. In a previous analysis, Pascual and colleagues estimated that without control measures, an increase in 1 degree Ce
'/>"/>

Contact: Jim Keeley
keeleyj@hhmi.org
301-215-8858
Howard Hughes Medical Institute
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Fish living near the equator will not thrive in the warmer oceans of the future
2. Glaciers sizzle as they disappear into warmer water
3. Warmer soils release additional CO2 into atmosphere; Effect stabilizes over longer term
4. Warmer temperatures make new USDA plant zone map obsolete
5. Research reveals contrasting consequences of a warmer Earth
6. No warming hiatus for extreme hot temperatures
7. Well-watered citrus tested in cold-acclimating temperatures
8. Cloud mystery solved: Global temperatures to rise at least 4C by 2100
9. Cloud mystery solved: Global temperatures to rise at least 4°C by 2100
10. Modern caterpillars feed at higher temperatures in response to climate change
11. Mountain pikas, relatives of rabbits, survive at warm sea-level temperatures by eating mosses
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/25/2014)... consume the healthcare community and remain priority ... To address the worldwide crisis of obesity ... global leaders in diabetes, epidemiology and public ... and development of diverse intervention programs in ... This book on "Global Health Perspectives in ...
(Date:7/25/2014)... University of Adelaide has opened the way for the development ... , In Australia, annual barley production is second only to ... one of the most important diseases of barley. , Senior ... composition of special growths on the cell walls of barley ... leaf. , The research, by the ARC Centre of Excellence ...
(Date:7/25/2014)... pleiotropic factor characterized by the existence of numerous ... confer to the protein deeply different characteristics. NRG1 ... occurring during development and the different phases occurring ... axon regrowth, remyelination and target reinnervation, Researchers at ... the soluble NRG1 upregulation observed in Schwann cells ...
Breaking Biology News(10 mins):What constitutes an effective response to the global 'diabesity' tsunami? 2New hope for powdery mildew resistant barley 2
... contamination of drinking water does not have a ... of Wisconsin-Madison researchers on arsenic-tainted wells shows that ... the contamination. Naturally occurring arsenic in rocks ... where it poses no threat to groundwater, explains ...
... maps that allow conservationists to estimate the distribution of ... threatened species and those with specific habitats, according to ... Conservation Biology. Our study found that species ranges ... trend is particularly pronounced for birds that are threatened, ...
... dinosaur from the Early Jurassic has been discovered in ... Glacialisaurus hammeri and lived about 190 million years ago. ... is based on partial foot, leg and ankle bones ... Antarctica at an elevation of more than 13,000 feet. ...
Cached Biology News:Arsenic contamination lacks one-size-fits-all remedy 2Arsenic contamination lacks one-size-fits-all remedy 3Threatened birds may be rarer than geographic range maps suggest 2Threatened birds may be rarer than geographic range maps suggest 3Massive dinosaur discovered in Antarctica sheds light on life, distribution of sauropodomorphs 2
(Date:7/24/2014)... Yan, Distinguished Professor of Engineering at the University ... to solve problems in energy engineering, environmental sustainability ... on zeolites, porous rock with a well-defined, crystalline ... is so precisely decided that zeolites can separate ... of an angstrom (one-tenth of a nanometer), making ...
(Date:7/24/2014)... 24, 2014 Your cell phone ... modeling lithium-ion battery storage capacity. , New research ... theoretical model created at Lawrence Livermore National ... predicts how carbon components will perform as electrodes. ... the urgent need for higher-performance batteries. Several key ...
(Date:7/24/2014)... 24, 2014 2014 Deep Research ... is a professional and in-depth research report on ... Sulphate basic information, including its definition, classification, ... This research covers the international market analysis, including ... analysis covering macroeconomic environment & economic situation analysis, ...
(Date:7/24/2014)... The first part of the session on “Best ... Studies” will cover comprehensive clinical support in early phase ... R&D costs and declining industry success in getting products ... collected in early Phase I/IIa study data to make ... development. , Next, the presenters will examine steps to ...
Breaking Biology Technology:University of Delaware researcher describes new approach for creating organic zeolites 2Getting More Life out of Lithium-ion Batteries 2Potassium Sulphate Market & SHMP Industry 2014 (Global, China) Analysis Now Available at DeepResearchReports.com 2Potassium Sulphate Market & SHMP Industry 2014 (Global, China) Analysis Now Available at DeepResearchReports.com 3Potassium Sulphate Market & SHMP Industry 2014 (Global, China) Analysis Now Available at DeepResearchReports.com 4Best Practices for Optimizing Dose Escalation in First in Human Studies, New Webinar August 6th Hosted by Xtalks 2
... Jan. 29 CuraGen Corporation (Nasdaq: CRGN ), ... and calendar year of 2008 and provided milestone and ... three month period ended December 31, 2008, CuraGen utilized ... fourth quarter with $88 million of cash and investments. ...
... development and production, today announced the appointment of David Pyrce as its ... ... Los Angeles (PRWEB) January 29, 2009 -- Nexsun Corp, a leader in ... David Pyrce as its Chief Executive Officer and member of the Board ...
... (Nasdaq: SGMO ) today announced that the ... financial results on Wednesday, February 4, 2009, after the ... a conference call at 5:00 p.m. ET, which will ... During the conference call, the company will review the ...
Cached Biology Technology:CuraGen Reports Fourth Quarter 2008 Financial Results; Provides Milestone and Financial Guidance for First Half of 2009 2CuraGen Reports Fourth Quarter 2008 Financial Results; Provides Milestone and Financial Guidance for First Half of 2009 3CuraGen Reports Fourth Quarter 2008 Financial Results; Provides Milestone and Financial Guidance for First Half of 2009 4CuraGen Reports Fourth Quarter 2008 Financial Results; Provides Milestone and Financial Guidance for First Half of 2009 5CuraGen Reports Fourth Quarter 2008 Financial Results; Provides Milestone and Financial Guidance for First Half of 2009 6Nexsun Corp Names Industry Executive David Pyrce as Chief Executive Officer 2Sangamo BioSciences Announces Fourth Quarter and Year-End 2008 Conference Call and Webcast 2Sangamo BioSciences Announces Fourth Quarter and Year-End 2008 Conference Call and Webcast 3
For the quantitative determination of cyclic AMP (cAMP) concentrations in cell culture supernates, serum, plasma, saliva, urine and cell lysates....
FRACTALKINE [Human] (Recombinant)...
... head automatically rises at the end of determination; triple-point calibration verification; refrigerator eliminates need for pumps and bath ... * ... ... ...
... The Luminex® 200 System with ... for developing single and multi-analyte assays ... contains the new, powerful user friendly ... user can design specific templates for ...
Biology Products: