The Bill and Melinda Gates Foundation partly financed the research. The study appears in the Lancet medical journal in a series of reports on eliminating malaria.
Other malaria experts writing in the Lancet expressed concern about giving too much attention to eliminating malaria. They say such a goal could take many years, if it is possible at all. The concern is that resources for controlling malaria could be lost if the money is spent instead on trying to defeat it.
Years of efforts to eliminate another disease, polio, have largely succeeded. Now, the World Health Organization says a new vaccine combination will help in the fight to end polio in countries where it is still found.
That report, based on a study from India, also appears in the Lancet.
There are three kinds of polio virus. Vaccination campaigns normally use vaccines designed to protect against all three types.
But cases of the type two virus have not been seen in years. And the new study confirmed that the type two vaccine reduces the effectiveness of the other vaccines when given together.
To avoid that problem, the new combination contains vaccine only for the type one and type three polio viruses.
And that's the VOA Special English Health Report. For more health news, go to voaspecialenglish.com. You can also find captioned videos of our reports on the VOA Learning English channel on YouTube. I'm Steve Ember.
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2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25