24 April 2009

Issue and Action: Malaria

Tomorrow (April 25) is World Malaria Day, so of course: Let's talk about it.


(This photo is from the Bill & Melinda Gates Foundation photo gallery.)

This is how it happens: Malaria is caused by a microscopic parasite that is carried by infected mosquitoes. When an infected mosquito bites a person, the parasite goes straight to the person's liver and begins to reproduce, then the infection is passed throughout the body through the blood stream. If the parasite arrives in the brain, cerebral malaria (which may lead to a coma and permanent neurological damage, and may be fatal) occurs.

Every 30 seconds, a child dies from malaria. Worldwide, malaria exists in 109 countries (which, combined, are home to half of the world's population) and kills a million people every year. In Africa specifically, malaria kills more children than any other disease. Overall, 90 percent of the people who die of malaria live in Africa. As is the case with so many public health issues, children are disproportionately affected by malaria.

Of course, even if a person doesn't die of malaria, there can be long-term effects just from contracting the disease. Globally, there are an estimated 350 to 500 million cases of malaria every year. Children who survive a case of cerebral malaria may suffer from long-term learning impairments or brain dysfunction. Also, malaria can cause anemia in children, which makes them more vulnerable to diarrhea, dehydration, and respiratory illnesses--which can, as we've seen in previous posts, be fatal in areas without ready access to health care, clean water, and adequate nutrition. Also, pregnant women (another high-risk population) who contract malaria have higher infant mortality rates, and their babies may be born with dangerously low birthweights.

You can imagine the toll that this disease takes on communities and nations; Africa loses an estimated $12 billion every year because of malarial infections.

One of the best-known (and simplest, and cheapest) ways to prevent malaria is to promote mosquito control initiatives. Distribution of insecticide-treated mosquito nets have been shown to have a remarkable effect on decreasing malaria. Technological innovation has made these nets more effective; old nets sometimes had to be re-sprayed with insecticide every six months, but the new nets are extremely effective. This, in combination with simple public health efforts such as removing standing water from the vicinity of homes (since mosquitoes breed near standing water), is crucial toward preventing malaria.

Other crucial initiatives involve improving access to drugs that treat malaria (which at present may be hard to come by, or too expensive). Other organizations are working to develop other prevention strategies (such as a malaria vaccine). The international community is working toward a goal of near-zero deaths from malaria by the year 2015. Obviously this will require concerted effort--and commentators seem divided on whether it is possible at this point--but many organizations are working toward this goal.

Recent data suggest that things are already changing, in some target countries, even faster than anyone expected. For instance, in Zambia, malaria deaths have been cut by two-thirds! And countries like like Rwanda and Ethopia are registering significant declines in their child mortality rates, attributable to the widespread distribution of bed nets.

I love these figures; I love to tell them to people who try to tell me that making donations to public health NGOs doesn't make a difference. Because if you choose your organizations wisely, your small donations really can contribute to difference-making.

If you're interested in learning more or donating to one of these organizations, here are some good ones to check out:
Bill & Melinda Gates Foundation
The Global Fund to Fight AIDS, Tuberculosis and Malaria
Nothing But Nets
Malaria No More

Also, if you have ten seconds to spare, you can sign this proclamation indicating your support for President Obama's promise to make ending malaria a national priority in the USA.

And if you have ten dollars to spare, you can donate an insecticide-treated mosquito net to an African country (and receive a woven African bracelet as a gift).

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