08/11/02 09:48:24
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Many medical researchers think that the best way to defeat malaria is by the development of an effective vaccine against the parasite.
Researchers have been working toward this goal for over 40 years, but the task has been a lot more difficult than originally thought.
The genome sequence of the most deadly malaria parasite was determined in 2002, and it is hoped this will help the development of new vaccines.
No completely effective vaccine is yet available.
The most effective one at the moment is an American vaccine tested on over 2,000 children in Mozambique.
It reduces the risk of infection by 30 percent and the severity of infection by 50 percent.
It is still in the trial stage.
Researchers expect it to be released for general use in 2010.
Breakthroughs in medical research don't happen overnight.
They take years of testing and developing untill they are safe to use.
In the meantime, millions suffer from malaria every year.
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