Contact Information:
Andrew Tatem
andy.tatem@gmail.com
University of Florida



Kredyty mieszkaniowe Kredyty mieszkaniowe

Sprawdź aktualny ranking najlepszych kredytów mieszkaniowych w Polsce - atrakcyjne kredytowanie nieruchomości.

PRESS-NEWS.org - Press Release Distribution
FREE PRESS RELEASES DISTRIBUTION
RSS - Press News Release
Add Press Release

Research suggests malaria can be defeated without a globally led eradication program


2013-02-22
(Press-News.org) GAINESVILLE, Fla. --- Malaria does not have to be eradicated globally for individual countries to succeed at maintaining elimination of the disease, according to research from the University of Florida's Emerging Pathogens Institute and department of geography, to be published in the journal Science Feb. 22.

Researchers Andrew Tatem and Christina Chiyaka found that those countries that have eliminated malaria have maintained their malaria-free states with remarkable stability, going against traditional theory. Between 1945 and 2010, 79 countries eliminated malaria and 75, or 95 percent, remained malaria-free, shrinking the geographic range of the disease, the researchers said.

For the 99 countries with endemic malaria today, the research by Tatem and his colleagues has important implications for tackling the problem. The elimination of malaria may be less costly to achieve and maintain than previously thought, Tatem said.

"Traditional theory suggests that we have to get rid of malaria completely, all across the world, all at around the same time, to keep new cases from being imported and starting outbreaks in elimination countries all over again," said Tatem, who conducted the research at UF and now is a professor at the University of Southampton in the United Kingdom. Chiyaka also has moved to the United Kingdom with her family.

The researchers found, however, that malaria elimination may be a 'sticky state,' meaning that once elimination is achieved, resurgence becomes a rare event.

"For instance, the United States imports 1,500 cases of malaria per year but has seen very few local outbreaks resulting from these, despite still having mosquitoes capable of spreading malaria," Tatem said. "The United States doesn't have active control measures in place, but does have a well-functioning detection system in place to take care of it."

Tatem said that many factors, working in combination, have likely contributed to the stability of malaria elimination seen in many countries. These include urbanization, which creates environments that are unfavorable for malaria-spreading mosquitoes; improvements in surveillance within health systems to ensure that imported cases are treated promptly and any local outbreaks are controlled early; and travel patterns, with travelers who bring in infections from elsewhere rarely ending up in rural areas where mosquito densities are highest, thus reducing the likelihood of onward spread.

Malaria has long been a global health issue. In 1955, the World Health Organization launched an eradication campaign that eliminated the disease in many temperate and subtropical regions but did not achieve worldwide eradication. The program was scrapped after less than two decades in favor of controlling malaria. However, WHO attributed about 660,000 deaths to the disease in 2010, mostly African children.

###

END


ELSE PRESS RELEASES FROM THIS DATE:

Researchers propose new way to probe Earth's deep interior

Researchers propose new way to probe Earths deep interior
2013-02-22
Researchers from Amherst College and The University of Texas at Austin have described a new technique that might one day reveal in higher detail than ever before the composition and characteristics of the deep Earth. There's just one catch: The technique relies on a fifth force of nature (in addition to gravity, the weak and strong nuclear forces and electromagnetism) that has not yet been detected, but which some particle physicists think might exist. Physicists call this type of force a long-range spin-spin interaction. If it does exist, this exotic new force would ...

New flu drug stops virus in its tracks

2013-02-22
A new class of influenza drug has been shown effective against drug-resistant strains of the flu virus, according to a study led by University of British Columbia researchers. Published online today in the journal Science Express, the study details the development of a new drug candidate that prevents the flu virus from spreading from one cell to the next. The drug is shown to successfully treat mice with lethal strains of the flu virus. In order to spread in the body, the flu virus first uses a protein, called hemagglutinin, to bind to the healthy cell's receptors. ...

A promising new method for next-generation live-attenuated viral vaccines against Chikungunya virus

2013-02-22
Researchers have successfully applied a novel method of vaccine creation for Chikungunya virus (CHIKV) using a technique called large scale random codon re-encoding. Using this approach, a group from the UMR_D 190, Emerging viruses Department in Marseille, France in collaboration with the University of Sydney, Australia, demonstrated that the engineered viruses exhibit a stable phenotype with a significantly decreased viral fitness (i.e., replication capacity), making it a new vaccine candidate for this emerging viral disease. This new report publishes on February 21 in ...

Conserving corals by understanding their genes

Conserving corals by understanding their genes
2013-02-22
In reef-building corals variations within genes involved in immunity and response to stress correlate to water temperature and clarity, finds a study published in BioMed Central's open access journal BMC Genetics. This information could be used to conserve or rebuild reefs in areas affected by climate change, by changes in extreme weather patterns, increasing sedimentation or altered land use. A research team led by the Australian Institute of Marine Science, and in collaboration with Penn State University and the Aix-Marseille University, studied DNA variations (Single ...

'Stressed' bacteria become resistant to antibiotics

2013-02-22
Bacteria become resistant to antibiotics when stressed, finds research published in BioMed Central's open access journal BMC Evolutionary Biology. In particular E. coli grown at high temperatures become resistant to rifampicin. It is generally thought that antibiotic resistance is costly to maintain, for example mutations which reduce antibiotic uptake also restrict the amount of nutrients entering the cell. Consequently in the absence of antibiotics non-resistant bacteria will out-compete the resistant ones. However researchers from UC Irvine and Faculté de Médicine ...

US government to announce new policies for dual use research

2013-02-22
What: The U.S. government today released two new documents to guide researchers in carrying out dual use research of concern. First, the White House Office of Science and Technology Policy today published a draft policy for public comment that proposes to formalize the roles and responsibilities of institutions and researchers when they are conducting certain types of research on specific pathogens and toxins. Researchers are often best poised to understand the potential misuse of the information, technologies and products emanating from their research and to propose ...

Eliminating malaria has longlasting benefits for many countries

2013-02-22
Many nations battling malaria face an economic dilemma: spend money indefinitely to control malaria transmission or commit additional resources to eliminate transmission completely. A review of malaria elimination conducted by researchers at the Johns Hopkins Malaria Research Institute and other institutions suggests stopping malaria transmission completely has longlasting benefits for many countries and that once eliminated, the disease is unlikely to reemerge over time. Furthermore, total eradication of malaria may not be necessary before countries that eliminate the ...

Scale-up of HIV treatment in rural South Africa dramatically increases adult life expectancy

2013-02-22
Boston, MA — The large antiretroviral treatment (ART) scale-up in a rural community in KwaZulu-Natal, South Africa, has led to a rapid and dramatic increase in population adult life expectancy—a gain of 11.3 years over eight calendar years (2004-2011)—and the benefit of providing ART far outweighs the cost, according to new research from Harvard School of Public Health (HSPH). While previous studies have shown that ART significantly improves survival in clinical cohorts of HIV patients receiving ART, this is the first study to directly measure the full population-level ...

Caves point to thawing of Siberia

2013-02-22
Evidence from Siberian caves suggests that a global temperature rise of 1.5 degrees Celsius could see permanently frozen ground thaw over a large area of Siberia, threatening release of carbon from soils, and damage to natural and human environments. A thaw in Siberia's permafrost (ground frozen throughout the year) could release over 1000 giga-tonnes of the greenhouse gases carbon dioxide and methane into the atmosphere, potentially enhancing global warming. The data comes from an international team led by Oxford University scientists studying stalactites and stalagmites ...

Should grandma join Facebook? It may give her a cognitive boost, study finds

2013-02-22
For older adults looking to sharpen their mental abilities, it might be time to log on to Facebook. Preliminary research findings from the University of Arizona suggest that men and women older than 65 who learn to use Facebook could see a boost in cognitive function. Janelle Wohltmann, a graduate student in the UA department of psychology, set out to see whether teaching older adults to use the popular social networking site could help improve their cognitive performance and make them feel more socially connected. Her preliminary findings, which she shared this month ...

LAST 30 PRESS RELEASES:

Three-dimensional metamaterials with a natural bent

Global boom in hydropower expected this decade

For brain hemorrhage, risk of death is lower at high-volume hospitals

Roman-Britons had less gum disease than modern Britons

'Swingers' multiple drug use heightens risk of sexually transmitted diseases

Were clinical trial practices in East Germany questionable?

The Lancet: The hidden truth about the health of homeless people

The Lancet Infectious Diseases: Study predicts that current international commitments will not contain Ebola outbreak in Montserrado, Liberia

Without swift influx of substantial aid, Ebola epidemic in Africa poised to explode

Treating ill health might not be enough to help homeless people get off the streets

People who develop kidney stones may face increased bone fracture risk

Costs to treat bleeding strokes increases 10 years later

Progression of age-related macular degeneration in one eye then fellow eye

Pre-enlistment mental disorders and suicidality among new US Army soldiers

NASA HS3 mission Global Hawk's bullseye in Hurricane Edouard

Nation's 'personality' influences its environmental stewardship, shows new study

Sunshine may slow weight gain and diabetes onset, study suggests

Mother's gestational diabetes linked to daughters being overweight later

An over-the-scope clipping device for endoscopic management of gastrointestinal defects is safe and effective

Bodies at sea: Ocean oxygen levels may impact scavenger response

Screening questions fail to identify teens at risk for hearing loss

A gut bacterium that attacks dengue and malaria pathogens and their mosquito vectors

Highest altitude ice age human occupation documented in Peruvian Andes

TSRI chemists achieve new technique with profound implications for drug development

Gene identified for immune system reset after infection

New microscope collects dynamic images of the molecules that animate life

Top marine scientists call for action on 'invisible' fisheries

Flu viruses disguised as waste

Genetic causes underlying the disqualification of 2 elite American Standardbred pacers

Cutting the ties that bind

[Press-News.org] Research suggests malaria can be defeated without a globally led eradication program
Press-News.org is a service of DragonFly Company. All Rights Reserved.
Issuers of news releases are solely responsible for the accuracy of their content.