Beating malaria without DDT

November 3, 2008

I told you so.

Recent research and assessments of anti-malaria campaigns in Africa show dramatic results from the use of bed nets and other non-DDT spraying methods.

Rachel Carson was right.

I was compelled to jump into this issue when Utah’s U.S. Rep. Rob Bishop made a silly and incorrect statement against Rachel Carson, after his failed attempt to derail a bill to rename a post office in her honor on the 100th anniversary of her birth.  The slam-Rachel-Carson effort turned out to include Oklahama U.S. Sen. Tom Coburn (who has since recanted), and an array of anti-science types who rail against “environmentalists” and made astoundingly false claims against Carson’s work and Carson herself.

In those cases, Carson’s critics called for a return of massive spraying of DDT.  Eventually most of them backed off of calling for outdoor spraying.  Eventually Sen. Coburn lifted his hold on the post office renaming legislation (and it passed).

The calumny continued on the internet, however, with an active hoax campaign for DDT and against environmental protection and Rachel Carson.  Steven Milloy joined Lyndon Larouche in promoting the anti-Carson screeds of the late Dr. Gordon Edwards, a UC Davis entomologist who argued against science that DDT was harmless to humans and animals.

Enough about history.  Look at the real results on the ground, today:

First, note the study published in Lancet that documents a dramatic decrease in malaria in Gambia, using “low-cost” strategies that include bed netsAgence France Presse carried a summary of the study. [Another link to the same AFP article.]

Incidence of malaria in Gambia has plunged thanks to an array of low-cost strategies, offering the tempting vision of eliminating this disease in parts of Africa, a study published Friday by The Lancet said.

At four key monitoring sites in the small West African state, the number of malarial cases fell by between 50 percent and 82 percent between 2003 and 2007, its authors found.

The tally of deaths from malaria, recorded at two hospitals where there had been a total of 29 fatalities out of 232 admissions in 2003, fell by nine-tenths and 100 percent in 2007. A fall of 100 percent means that no deaths attributed to malaria occurred that year.

“A large proportion of the malaria burden has been alleviated in Africa,” the study concludes.

Also see:

Second, note that malaria rates also fell in Kenya, with a shift in infections away from young children, a very good sign. TropIKA.net carried a summary of that study.

Toronto’s Globe and Mail carried a longer story on Kenya’s experience, “Malaria a rare public-health success story in Africa.”

“We had to stay home and tend the sick – you can never leave them to go and work in the fields – and then there was no income and we were hungry. So truly, that 100 shillings was a great investment.”

The family heard about the importance of using a bed net to fend off malaria in a sermon at church, and then on the radio. Now, a year later, they would be able to get them for free, as Kenya ramps up its efforts to get every single citizen sleeping under a net.

Already, two-thirds of Kenyan children are sleeping beneath them and, as a result, child malaria deaths have fallen by 40 per cent in the past two years.

This remarkable success story has been repeated across much of Africa: Deaths of children under 5 declined 66 per cent in Rwanda from 2005 to 2007 and by 51 per cent in Ethiopia.

“This really is the one global public-health story that is simply and straightforwardly positive,” said Jon Lidén, spokesman for the Global Fund to Fight AIDS, Tuberculosis and Malaria, which has been behind much of the push.

“It’s not a gradual change. It’s a fundamental change in the fight against malaria.”

Yet the decidedly unglamorous innovations responsible for the change – spraying houses, treating standing water to kill larvae, mass distribution of cheap polyester nets and better drugs, and simple public education on the need to treat suspected malaria quickly – receive almost no attention.

“We never make the headlines with this stuff,” said Shanaaz Sharif, head of disease control for Kenya’s Ministry of Health, which has thus far given out 11 million nets at a cost to the government of $6 each.

Sulay Momoh Jongo, 7, is seen inside a mosquito net in a mud hut is seen inside a mosquito net in a mud hut in Mallay village, southern Sierra Leone, on April 8, 2008. Although free treatment is sometimes available in Sierra Leone to fight the mosquito-borne disease -- whose deadliest strain is common in the countrys mangrove swamps and tropical forests -- many cannot get to health clinics in time. Worldwide, more than 500 million people become severely ill with malaria every year. One child dies of the disease every 30 seconds. Picture taken April 8, 2008. (Katrina Manson/Reuters)

From the Toronto Globe and Mail: “Sulay Momoh Jongo, 7, is seen inside a mosquito net in a mud hut is seen inside a mosquito net in a mud hut in Mallay village, southern Sierra Leone, on April 8, 2008. Although free treatment is sometimes available in Sierra Leone to fight the mosquito-borne disease — whose deadliest strain is common in the country’s mangrove swamps and tropical forests — many cannot get to health clinics in time. Worldwide, more than 500 million people become severely ill with malaria every year. One child dies of the disease every 30 seconds. Picture taken April 8, 2008. (Katrina Manson/Reuters)”

Despite pledges from the U.S. to signficantly increase funding to fight malaria, money has not flowed from the U.S., especially for bed nets.  Ironically, Canada is the chief donor of the nets.

Canada has had a key role in this success: The Canadian International Development Agency is the single largest donor of bed nets to Africa – nearly 6.4 million by the end of last year. In addition to government support, Canadian individuals and charities – notably the Red Cross – have embraced the issue by making donations and fundraising.

“Canadians … haven’t got the credit they deserve,” said Prudence Smith, head of advocacy for Roll Back Malaria, a partnership between key global-health agencies and donors such as the Bill and Melinda Gates Foundation.

Not all news is good. In Zimbabwe, dictator Robert Mugabe misused $7.3 million in malaria-fighting money from the Global Fund to Fight AIDS, Tuberculosis and Malaria. So far, he has not repaid the Global Fund. Politics continues to kill Africans, not an absence of DDT.

In India, where DDT use is untallied, manufacture massive, and use virtually uncontrolled, malaria is resurgent. According to The Telegraph in Calcutta, malaria is epidemic among people living in poorer sections of the city, often with fatal results.  ExpressIndia.com’s headline tells the story:  “Malaria puts city on the edge:  toll rises to 8.”

Public health officials in India will step up information and education campaigns, and urge residents “not to panic.”

See also:

In the Philippines, the government’s press agency promotes malaria prevention steps.

Science Daily reports progress in the long march for a malaria vaccine.

Public health officials warn the U.S. is completely unprepared for a malaria outbreak, according to The Orlando Sentinel, via the Houston Chronicle.

More:


Harappa and Mohenjodaro sources

October 5, 2008

The Maharajah of Cashmere  The Illustrated London News  December 18, 1875  [From a longer story on the Prince of Wales visit to India in 1875.] With regard to the Maharajah of Cashmere, whose residence and political relations, beneath the Himalayas and in the Valley of the Upper Indus, are very remote from Bombay, we defer any notice of him till the Prince of Wales goes to visit him in Cashmere. The portrait of this Maharajah is from a photograph by Messrs. Bourne and Shepherd, of India.
The Maharajah of Cashmere The Illustrated London News December 18, 1875 (From a longer story on the Prince of Wales visit to India in 1875.) – “With regard to the Maharajah of Cashmere, whose residence and political relations, beneath the Himalayas and in the Valley of the Upper Indus, are very remote from Bombay, we defer any notice of him till the Prince of Wales goes to visit him in Cashmere. The portrait of this Maharajah is from a photograph by Messrs. Bourne and Shepherd, of India.”

World history teachers, bookmark this site:  Harappa.com

It’s a rich site about India and Pakistan, and includes information and images about the Harappa and Mohenjo-Daro civilizations.

Great images for your classrooms, or for your students’ projects.

Tip of the old scrub brush to John Maunu teaching AP World History in Grosse Ile, Michigan.

(Full text of description of site from the Asian Studies WWW Monitor below the fold.)

Read the rest of this entry »


India, 100 years ago

June 30, 2008

World history and geography teachers take note: This site, Chat and Chai, has an interesting slide show of what appear to be stereoscope and post card photos from India, 100 years ago. The link may be useful for on-line demonstrations — you may be able to use the images in other presentations.

The slides show people in a lot of everyday activities, providing good, visual examples of how people lived then. An instructive comparison: Can your students find photos of Indians carrying out similar activities today? How has India changed, for how much of its population? I suspect you can find cases where Some Indians have leaped into the 21st century, and other examples where the lives of many millions of people have not changed all that much.

Several of the photos remind that they were taken 40 years or more before India won independence from Britain. These may pertain to discussions of empires and imperialism, and other economic issues, too.

One commenter asked the blogger to share the slides, but I don’t see a positive response.

Don’t ask me to explain the music the blogger selected for the slides.

Here is the actual slide show.

Vodpod videos no longer available.

more about “India 100 Years Ago “, posted with vodpod


Meanwhile, back at the DDT manufacturing plant . . .

June 9, 2008

Don’t breathe the air, don’t eat the eggs.  Life next door to a DDT plant in India.

In case you were wondering where nations that want to use DDT might find some, now that it’s not being made in the U.S.

Read the rest of this entry »


Don’t drink the water: Pesticides in India

June 8, 2008

Some nations do not wish to use DDT to poison mosquitoes because they have other poison problems, and they’d almost rather have malaria than more poison.

For example, see this description of clean water problems in India.  From A Wide Angle View of India. Be sure to follow the links to stories in the New York Times and on BBC’s website.


Two million minute challenge

May 9, 2008

Just over two weeks to graduation, son James is concerned about global competitiveness.  He’s off to study physics at Lawrence University in the fall; he is insistent I note the news in the paper this week.  I still have an active  stake in public schools, after all — good call, James.  Here’s his concern, below.

Each child has two million minutes of life over the four years of high school. Whether the U.S. can remain competitive in the global economy depends more than ever on how each child allocates those two million minutes.

A new film raises concerns that U.S. children are losing out against students from India and China.

Dallas Morning News business reporter Jim Landers wrote about the movie, “Two Million Minutes,” in an article May 6. It’s an indication of something that this is front page in the business section — an indication of genuine concern, one may hope.

Science and mathematics education gets the major attention in the film. One wishes this film could compete with the anti-science film “Expelled!” which still lingers malodrously in a few theatres across the nation.

Landers wrote:

2 Million Minutes argues that “the battle for America’s economic future isn’t being fought by our government. It’s being fought by our kids.”

And in a series of international comparisons, the U.S. kids are not doing so well. The one area where they score better than the rest is self-confidence.

Once they leave the eighth grade, students have a little more than 2 million minutes to get ready for work or college and the transition to being an adult. This documentary, made by high-tech entrepreneur Robert Compton, follows two high school seniors in Carmel, Ind., two in Bangalore, India, and two in Shanghai, China, to see how they use their time.

All six are bright, accomplished, college-bound individuals.

Our students spend a lot of time watching TV, working part-time jobs, playing sports and video games, but not so much on homework. The Chinese kids spend an extra month in school each year, more hours at school each day and more hours doing homework. By the time they graduate, Chinese students have spent more than twice as much time studying as their U.S. counterparts.

While one may hope kids will pay attention, one may be unhappy to recall the topic, and many of the same or similar numbers, were published nationally in the 1980s by the Office of Educational Research and Improvement (OERI) at the U.S. Department of Education. I remember it well, since I was publisher for some of the work.

The website for the movie offers more details, including a calendar of screenings. DVDs are available, but at very high prices — $25 for home use, $100 for school or non-profit use. I’d love to show it to students; I can get a couple of much-needed PBS videos for that same price. I hope producers will work to arrange distribution competitive with opposition movies like Stein’s. I’ll wager “Expelled!” will hit the DVD market at about $10.00, with thousands of DVDs available for free to churches and anti-science organizations.

Landers chalks up some of the stakes, and we should all pay attention:

Nearly 60 percent of the patents filed with the U.S. Patent and Trademark Office in the field of information technology now originate in Asia.

The United States ranks 17th among nations in high-school graduation rate and 14th in college graduation rate.

In China, virtually all high school students study calculus; in the United States, 13 percent study calculus.

For every American elementary and secondary school student studying Chinese, there are 10,000 students in China studying English.

The average American youth now spends 66 percent more time watching television than in school.

SOURCE: “Is America Falling off the Flat Earth?” by Norman R. Augustine, chairman, National Academy of Sciences “Rising Above the Gathering Storm” committee