News / Health

Scientists Race to Contain Malaria: New Discoveries, More Resistance

Scientists Race to Contain Malaria: New Discoveries, More Resistancei
X
May 18, 2013
Two new medical discoveries are raising hopes of containing malaria - the mosquito-borne parasitic disease that each year infects more than 200 million people and claims an estimated 660 thousand lives. Meantime, the World Health Organization is warning about dire consequences if a drug-resistant form of malaria spreads beyond southeast Asia.

Scientists Race to Contain Malaria: New Discoveries, More Resistance

TEXT SIZE - +
Carol Pearson
Two new medical discoveries are raising hopes of containing malaria - the mosquito-borne parasitic disease that each year infects more than 200 million people and claims an estimated 660 thousand lives.  Meantime, the World Health Organization is warning about dire consequences if a drug-resistant form of malaria spreads beyond southeast Asia.

Artemisinin has helped cut global malaria deaths by more than 25 percent over the past decade. But now, in parts of Southeast Asia, this drug no longer works. And the World Health Organization's Dr. Shin Young-Soo warns of serious setbacks if drug resistance continues to spread.  

"The truth is, that malaria will beat us all unless we do more than what we are doing now, and we do it better," he said.

Controlling malaria involves a range of strategies: using insecticidal bed nets to prevent mosquito bites, spraying insecticides, preventive treatment for children  and pregnant women, and controlling or changing mosquitoes, or the malaria parasites they carry.

The World Health Organization says that in the last 10 years, 20 countries have brought the disease under control. At a U.S. congressional hearing, Dr. Mark Dybul executive director of the Global Fund to Fight AIDS, Tuberculosis and Malaria, said the world is on course to end malaria.

"We've had so much success over the last 10 years that you've heard about, that high-transmission areas are becoming much more confined," said Dybul.

Dybul said global efforts have led to better treatment and more effective control of the mosquito that carries the parasite.
 
Dr. Anthony Fauci, at the US National Institutes of Health, points to promising research that involves introducing a strain of bacteria into the mosquito.

"It's a bacteria that infects the mosquito, and what it does is it interferes with the developmental process that the malaria parasite goes through in the mosquito in its lifecycle," said Fauci.

And once the bacterium is in the mosquito, it's passed down to succeeding generations. The hope is, these malaria-proof mosquitoes eventually will replace those that can carry the parasite.  

"Which means, if you can get this out there among populations of mosquitoes in different regions of the world in different countries, it could have a profound effect on the control of malaria," said Fauci.

The true test, of course, will come when mosquitos infected with the bacterium are released into the wild. Dr. Guowu Bian is the Michigan State University scientist who led this research. He spoke to VOA via Skype.

"I hope in a few years, maybe three or four years, our mosquito can go to the field," he said.

Another promising line of research involves manipulating the mosquito's genes. Right now, the anopheles mosquito has no defense against the malaria parasite. If scientists can change its genetic makeup, the mosquito's immune system could repel the organism.

Meanwhile, the clock is ticking as the malaria parasite becomes immune to the world's front-line drug against the disease.

You May Like

Abuja Blast Impacts Lives, Livelihoods

Officials say they are looking at ways to help bombing victims and boosting security More

Cambodia Technology Adviser Criticizes Cybercrime Draft Law

Phu Leewood says current criminal code can be used to prosecute offenders and that there is no need for a separate law More

Photogallery A Year Later, Boston Remembers Deadly Marathon Bombings

City pauses to honor victims and salute emergency workers who came to their assistance in frantic moments after blasts More

This forum has been closed.
Comments
     
There are no comments in this forum. Be first and add one

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
Google Buys Drone Companyi
|| 0:00:00
...
 
🔇
X
George Putic
April 15, 2014
In its latest purchase of high-tech companies, Google has acquired a manufacturer of solar-powered drones that can stay in the air almost indefinitely, relaying broadband Internet connection to remote areas. It is seen as yet another step in the U.S. based Web giant’s bid to bring Internet to the whole world. VOA’s George Putic reports.
Video

Video Google Buys Drone Company

In its latest purchase of high-tech companies, Google has acquired a manufacturer of solar-powered drones that can stay in the air almost indefinitely, relaying broadband Internet connection to remote areas. It is seen as yet another step in the U.S. based Web giant’s bid to bring Internet to the whole world. VOA’s George Putic reports.
Video

Video Ray Bonneville Sings the Blues and More on New CD

Singer/songwriter Ray Bonneville has released a new CD called “Easy Gone” with music that reflects his musical and personal journey from French-speaking Canada to his current home in Austin,Texas. The eclectic artist’s fan base extends from Texas to various parts of North America and Europe. VOA’s Greg Flakus reports from Austin.
Video

Video Millions Labor in Pakistan's Informal Economy

The World Bank says that in Pakistan, roughly 70 percent work in the so-called informal sector, a part of the economy that is unregulated and untaxed. VOA's Sharon Behn reports from Islamabad on how the informal sector impact's the Pakistani economy.
Video

Video Passover Celebrates Liberation from Bondage

Jewish people around the world are celebrating Passover, a commemoration of their liberation from slavery in Egypt more than 3,300 years ago. According to scripture, God helped the Jews, led by Moses, escape bondage in Egypt and cross the Red Sea into the desert. Zlatica Hoke reports that the story of the Jewish Exodus resonates with other people trying to escape slave-like conditions.
Video

Video Police Pursue Hate Crime Charges Against Kansas Shooting Suspect

Prosecutors are sifting through the evidence in the wake of Sunday’s shootings in a suburb of Kansas City, Missouri that left three people dead. A suspect in the shootings taken into custody is a white supremacist. As VOA’s Kane Farabaugh reports, he was well-known to law enforcement agencies and human rights groups alike.
Video

Video In Eastern Ukraine, Pro-unity Activists Emerge from Shadows

Amid the pro-Russian uprisings in eastern Ukraine, there is a large body of activists who support Ukrainian unity and reject Russian intervention. Their activities have remained largely underground, but they are preparing to take on their pro-Moscow opponents, as Henry Ridgwell reports from the eastern city of Donetsk.
Video

Video Basket Maker’s Skills Have World Reach

A prestigious craft show in the U.S. capital offers one-of-a-kind creations by more than 120 artists working in a variety of media. As VOA’s Julie Taboh reports from Washington, one artist lucky enough to be selected says sharing her skills with women overseas is just as significant.
Video

Video UN Report Urges Speedier Action to Avoid Climate Disaster

A new United Nations report says the world must switch from fossil fuels to cleaner energy sources to control the effects of climate change. The Intergovernmental Panel on Climate Change released the report (Sunday) following a meeting of scientists and government representatives in Berlin. The comprehensive review follows two recent IPCC reports that detail the certainty of climate change, its impacts and in this most recent report what to do about it. VOA’s Rosanne Skirble has the details.
AppleAndroid