News / Health

    Scientists Race to Contain Malaria: New Discoveries, More Resistance

    Scientists Race to Contain Malaria: New Discoveries, More Resistancei
    X
    May 18, 2013 3:35 AM
    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
    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

    Hope Remains for Rio Olympic Games

    Facing a host of problems, Rio prepares for holding the games but experts say some risks, like Zika, may not be as grave as initially thought

    IS Use of Social Media to Recruit, Radicalize Still a Top Threat to US

    Despite military gains against IS in Iraq and Syria, their internet propaganda still commands an audience; US officials see 'the most complex challenge that the federal government and industry face'

    ‘Time Is Now’ to Save Africa’s Animals From Poachers, Activist Says

    During Zimbabwe visit, African Wildlife Foundation President Kaddu Sebunya says poaching hurts Africa as slave trade once did

    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.
    Ivorian Chocolate Makers Promote Locally-made Chocolatei
    X
    July 29, 2016 4:02 PM
    Ivory Coast is the world's top producer of cocoa but hardly any of it is processed into chocolate there. Instead, the cocoa is sent abroad to chocolate makers in Europe and elsewhere. This is a general problem throughout Africa – massive exports of raw materials but few finished goods. As Emilie Iob reports from Abidjan, several Ivorian entrepreneurs are working to change that formula - 100 percent Ivorian chocolate bar at a time.
    Video

    Video Ivorian Chocolate Makers Promote Locally-made Chocolate

    Ivory Coast is the world's top producer of cocoa but hardly any of it is processed into chocolate there. Instead, the cocoa is sent abroad to chocolate makers in Europe and elsewhere. This is a general problem throughout Africa – massive exports of raw materials but few finished goods. As Emilie Iob reports from Abidjan, several Ivorian entrepreneurs are working to change that formula - 100 percent Ivorian chocolate bar at a time.
    Video

    Video Tesla Opens Battery-Producing Gigafactory

    Two years after starting to produce electric cars, U.S. car maker Tesla Motors has opened the first part of its huge battery manufacturing plant, which will eventually cover more than a square kilometer. Situated close to Reno, Nevada, the so-called Gigafactory will eventually produce more lithium-ion batteries than were made worldwide in 2013. VOA's George Putic reports.
    Video

    Video Polio-affected Afghan Student Fulfilling Her Dreams in America

    Afghanistan is one of only two countries in the world where children still get infected by polio. The other is Pakistan. Mahbooba Akhtarzada who is from Afghanistan, was disabled by polio, but has managed to overcome the obstacles caused by this crippling disease. VOA's Zheela Nasari caught up with Akhtarzada and brings us this report narrated by Bronwyn Benito.
    Video

    Video Hillary Clinton Promises to Build a 'Better Tomorrow'

    Democratic presidential candidate Hillary Clinton urged voters Thursday not to give in to the politics of fear. She vowed to unite the country and move it forward if elected in November. Clinton formally accepted the Democratic Party's nomination at its national convention in Philadelphia. VOA national correspondent Jim Malone has more.
    Video

    Video Trump Tones Down Praise for Russia

    Republican presidential candidate Donald Trump is toning down his compliments for Russia and Vladimir Putin as such rhetoric got him in trouble recently. After calling on Russia to find 30.000 missing emails from rival Hillary Clinton, Trump told reporters he doesn't know Putin and never called him a great leader, just one who's better than President Barack Obama. Putin has welcomed Trump's overtures, but, as Zlatica Hoke reports, ordinary Russians say they are not putting much faith in Trump.
    Video

    Video Uganda Unveils its First Solar-powered Bus

    A solar-powered bus described by its Ugandan makers as the first in Africa has made its public debut. Kiira Motors' electric bus, Kayoola, displayed recently at a stadium in Uganda's capital. From Kampala, Maurice Magorane filed this report narrated by Salem Solomon.
    Video

    Video Silicon Valley: More Than A Place, It's a Culture

    Silicon Valley is a technology powerhouse and a place that companies such as Google, Facebook and Apple call home. It is a region in northern California that stretches from San Francisco to San Jose. But, more than that, it's known for its startup culture. VOA's Elizabeth Lee went inside one company to find out what it's like to work in a startup.
    Video

    Video Immigrant Delegate Marvels at Democratic Process

    It’s been a bitter and divisive election season – but first time Indian-American delegate Dr. Shashi Gupta headed to the Democratic National Convention with a sense of hope. VOA’s Katherine Gypson followed this immigrant with the love of U.S. politics all the way to Philadelphia.
    Video

    Video Dutch Entrepreneurs Turn Rainwater Into Beer

    June has been recorded as one of the wettest months in more than a century in many parts of Europe. To a group of entrepreneurs in Amsterdam the rain came as a blessing, as they used the extra water to brew beer. Serginho Roosblad has more to the story.
    Video

    Video Commerce Thrives on US-Mexico Border

    At the Democratic Convention in Philadelphia this week, the party’s presumptive presidential nominee, Hillary Clinton, is expected to attack proposals made by her opponent, Republican presidential nominee Donald Trump, to build a wall along the U.S.-Mexico border. Last Friday, President Barack Obama hosted his Mexican counterpart, President Enrique Peña Nieto, to underscore the good relations between the two countries. VOA’s Greg Flakus reports from Tucson.
    Video

    Video Film Helps Save Ethiopian Children Thought to be Cursed

    'Omo Child' looks at effort of African man to stop killings of ‘mingi’ children
    Video

    Video London’s Financial Crown at Risk as Rivals Eye Brexit Opportunities

    By most measures, London rivals New York as the only true global financial center. But Britain’s vote to leave the European Union – so-called ‘Brexit’ – means the city could lose its right to sell services tariff-free across the bloc, risking its position as Europe’s financial headquarters. Already some banks have said they may shift operations to the mainland. Henry Ridgwell reports from London.

    Special Report

    Adrift The Invisible African Diaspora