Sunday, April 29, 2012

Death toll of global malaria or underestimating seriously

Death toll of global malaria or underestimating seriously
It is reported ' The intersection of reporter and Luis Zhao) Researchers are querying the conclusion of a thesis receiving much concern, compared with estimation before this, this research has doubled the fatality rates in the whole world of malaria.

Health tolerance and assessment research institute (IHME) in University of Washington, Seattle of U.S.A. Researcher publish by " the lancet " to write articles to point out at February at the magazines, global the intersection of malaria and statistics that death toll carry on analyze World Health Organization (WHO) to 2010 Figure ( 655000) provided Have raised nearly two times of ( 1240000) .

But as the responsible reader of the thesis, BobSnow of Kenya Nairobi geographical medical center thinks, researchers have significant defects on methodology.

For example, it is not usually all too reasonable to even to report because of official death of developing countries exist, it is used that the research group of IHME is convenient " The oral corpse is examined " --Keep in touch with the dead's friend and family - -To finish the evaluation in death toll.

Snow points out: "Oral corpse it examines to be one very stiff tool, in some cases, like determine death the reason with toss of a coin. " He says: "If somebody's because very obvious reason death, then it is very useful, grind one bus, but the method have function for mixture of malaria symptom. In this research, the death caused that they have basically considered great majority and generate heat, and assume as them to originate from malaria - -This is a fundamental question. "

The president KevinMarsh of consultative committee of WHO malaria policy approves the worry of Snow too. Marsh says: "This is a ' true ' figure that these figures seem that they provide, and make some statements not modest, for example ' show by data these ', but not ' believe data these show by we ' - -Certainly this is a question on a language. In any case, this result of study helps and promotes the new assessment to this kind of infectious disease to work, but is hard to tell whose figure is more accurate. "

The author of the article acknowledges using the oral corpse to examine such a problem, but still point out it should be superior to other methods. IHME professor StephenLim says: "At the place where it is registered that there is no death, it is a simple and effective temporary tool that the oral corpse is examined. "

Snow says: "I do not believe IHME or WHO can find out it is with a lot of people died that malaria is really killed in the whole world - -Nobody really finds out about truth. But this can never become top news. "

This research has attracted quite a lot of concerns of media, and been trumpeted by " lancet " editor-in-chief RichardHorton, he wrote in Twitter: "This blow is a revolution. "

The scientist engaged in this research thinks too this is really a revolution. They point out, contrary to medical view of the mainstream, this research shows, a large number of adults die of malaria: The new data show, in the malaria death case of the whole world, 42% have already reached the age of 5, this is that WHO estimates and examines 8 times of the result.

Lim says: "Our data do not mean immunity does not exist in the adult philtrum - -This is an important difference, but anticipated one that proved the intensity of immunity should be lower than before this. "

IHME and WHO, and most researchers are in favor of such a view, namely since reaching peak value in 2004 - -The estimation value of IHME is 1,800,000 people, and twice that of figure that WHO offer, the death toll of malaria is dropping. This will thank you for resisting AIDS, pulmonary tuberculosis and malaria global fund and contribution of Bill and Mei Linda and Gates foundation to a great extent. Their subsidy rises to more than 2 billion dollars of 2009 from 250 million dollars in 2001.

Resisting the executive directors RichardFeachem of AIDS, pulmonary tuberculosis and global fund of malaria says: "Compared with our expectancy, more persons die of malaria, but we are gaining this war - -Mortality is dropping dramatically. "

He says: "Should approve our existing efforts, and continue increasing input. "


Death toll of global malaria or underestimating seriously

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