News / Health

New Test Could Revolutionize Malaria Treatment

A young girl with malaria rests in the inpatient ward of the Malualkon Primary Health Care Center in Malualkon, in the South Sudanese state of Northern Bahr el-Ghazal, June 1, 2012.
A young girl with malaria rests in the inpatient ward of the Malualkon Primary Health Care Center in Malualkon, in the South Sudanese state of Northern Bahr el-Ghazal, June 1, 2012.
A new diagnostic test could revolutionize the treatment of malaria, one of the world’s most persistent and deadly diseases, making it possible to diagnose the illness from a single drop of blood or saliva.

The test, developed by researchers at Aarhus University in Denmark, detects very low levels of an enzyme produced by the Plasmodium parasite, the organism that causes malaria. This could allow intervention before an outbreak develops, researchers say. 

“The great advantage of our method is that we can test for malaria using saliva samples and the the detection limit is very low - less than one parasite per microliter,” said Birgitta Knudsen, an associate professor at Aarhus University’s Interdisciplinary Nanoscience Centre and the Department of Molecular Biology and Genetics. “This means that it will be possible to also screen non-symptomatic individuals and discover cases with very low parasite concentrations. Hence, it will be possible to treat even mildly infected patients and thereby prevent outbreaks before it is too late.”

The two most common forms of malaria testing both require blood samples, and there are drawbacks to each. One requires a skilled technician to test the blood, while the other cannot detect low levels of the parasite, Knudsen said.

The new method, which uses a technology called REEAD (Rolling Circle-Enhanced Enzyme Activity Detection), could prove more time- and cost-effective than current diagnostic methods, and could be performed by personnel who have no specialized training. It could also be used in developing areas, where expensive equipment, clean water and electricity might not be readily available.

Knudsen said the team hopes to conduct extensive field testing in about two years.

The Danish team was assisted by molecular biologists, doctors, engineers and statisticians at various universities around the world including Duke University, the University of Rome, the University of St. Andrews and the University of Lyon.

The World Health Organization estimates that more than 650,000 people die from malaria each year. The vast majority are children in sub-Saharan Africa.

Earlier this month British drug manufacturer GlaxoSmithKline, revealed disappointing results for what would be the world’s first vaccination against the mosquito-borne disease.

You May Like

Obama: Alaskans Feel Signs of Climate Change

They're seeing bigger storm surges as sea ice melts, more wildfires, erosion of glaciers, shorelines More

Katrina Brought Enduring Changes to New Orleans

The city’s recovery is the result of the people and culture the city is famous for, as well as newcomers and start-up industries More

Magical Photo Slides Show Native Americans in Late 1800s

Walter McClintock spent 20 years photographing the Blackfoot Indians and their vanishing culture at the dawn of the modern age More

This forum has been closed.
Comment Sorting
Comments
     
by: littleyan from: China
November 29, 2012 9:26 PM
May this could really help.

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
Colombians Flee Venezuela as Border Crisis Escalatesi
X
August 27, 2015 2:08 AM
Hundreds of Colombians have fled Venezuela since last week, amid an escalating border crisis between the two countries. Last week, Venezuelan President Nicolas Maduro ordered the closure of a key border crossing after smugglers injured three Venezuelan soldiers and a civilian. The president also ordered the deportation of Colombians who are in Venezuela illegally. Zlatica Hoke reports.
Video

Video Colombians Flee Venezuela as Border Crisis Escalates

Hundreds of Colombians have fled Venezuela since last week, amid an escalating border crisis between the two countries. Last week, Venezuelan President Nicolas Maduro ordered the closure of a key border crossing after smugglers injured three Venezuelan soldiers and a civilian. The president also ordered the deportation of Colombians who are in Venezuela illegally. Zlatica Hoke reports.
Video

Video Is China's Economic Data Accurate?

Some investors say China's wild stock market gyrations have been made worse by worries about the reliability of that nation's economic data. And some critics say the reports can mislead investors by painting an unrealistically-strong picture of the economy. A key China scholar says Beijing is not fudging ((manipulating)) the numbers, but that the economy is evolving quickly from smoke-stack industries to services, and the ways of tracking new economic activity are falling behind the change. V
Video

Video Next to Iran, Climate at Forefront of Obama Agenda

President Barack Obama this week announced new initiatives aimed at making it easier for Americans to access renewable energy sources such as solar and wind. Obama is not slowing down when it comes to pushing through climate change measures, an issue he says is the greatest threat to the country’s national security. VOA correspondent Aru Pande has more from the White House.
Video

Video Shipping Containers Provide Experimental Housing

Housing prices around the San Francisco Bay area are out of reach for many people, so some young entrepreneurs, artists and tech industry workers are creating their own houses using converted shipping containers. But as VOA's Mike O’Sullivan reports from Oakland, the effort requires ingenuity and dealing with restrictive local laws.
Video

Video Arctic Draws International Competition for Oil

A new geopolitical “Great Game” is underway in earth’s northernmost region, the Arctic, where Russia has claimed a large area for resource development and President Barack Obama recently approved Shell Oil Company’s test-drilling project in an area under U.S. control. Greg Flakus reports.
Video

Video Philippine Maritime Police: Chinese Fishermen a Threat to Country’s Security

China and the Philippines both claim maritime rights in the South China Sea.  That includes the right to fish in those waters. Jason Strother reports on how the Philippines is catching Chinese nationals it says are illegal poachers. He has the story from Palawan province.
Video

Video Technique May Eliminate Drill-and-Fill Dental Care

Many people dread visiting dentists because they're afraid of drills. Now, however, a technology developed by a British firm promises to eliminate the need for mechanical cleaning of dental cavities by speeding a natural process of tooth repair. VOA’s George Putic reports.
Video

Video China's Spratly Island Building Said to Light Up the Night 'Like A City'

Southeast Asian countries claim China has illegally seized territory in the Spratly islands. It is especially a concern for a Philippine mayor who says Beijing is occupying parts of his municipality. Jason Strother reports from the capital of Palawan province, Puerto Princesa.
Video

Video Ages-old Ice Reveals Secrets of Climate Change

Ice caps don't just exist at the world's poles. There are also tropical ice caps, and the largest sits atop the Peruvian Andes - but it is melting, quickly, and may be gone within the next 20 years. George Putic reports scientists are now rushing to take samples to get at the valuable information about climate change locked in the ice.
Video

Video French Experiment in Integrating Roma Under Threat

Plans to destroy France’s oldest slum have sparked an outcry on the part of its Roma residents. As Lisa Bryant reports from the Paris suburb of La Courneuve, rights groups argue the community is a fledgling experiment on integrating Roma who are often outcasts in many parts of Europe.
Video

Video Kenyans Turn to Agriculture for Business

Each year Kenyan universities continue to churn out graduates for the job market despite the already existing high rate of unemployment among youth in the country. Some of these young men and women have realized that agriculture can be as rewarding as any other business or job, and they are resorting to agribusiness in large numbers as a way of tackling unemployment. Rael Ombuor reports for VOA.
Video

Video First Women Graduate Elite Army Ranger School

Two women are making history for the U.S. Army by proving they are among the toughest of the tough. VOA's Carla Babb reports from Fort Benning, Georgia as 94 men and those two women rise as graduates of the difficult Ranger school.

VOA Blogs