| 21. | But they were not told whether the gel they were using contained the microbicide or was merely the placebo.
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| 22. | Third, for any virus that does enter cells, the microbicide would block an enzyme, reverse transcriptase.
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| 23. | They were able to extract enough griffithsin to produce about 100, 000 HIV microbicide doses from the leaves.
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| 24. | She was just about to launch a nonoxynol-9 microbicide trial in Zimbabwe, involving about 1, 200 women.
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| 25. | To be useful in the poor countries where new AIDS infections are concentrated, a microbicide would have to be inexpensive.
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| 26. | One of the leading candidates is Carraguard, a microbicide under development by the Population Council, based in New York.
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| 27. | So Howett believes it would be equally gentle as a vaginal microbicide, something the first tests will try to determine.
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| 28. | Initially, AIDS prevention experts had hoped that a common spermicide, nonoxynol-9, would also work as a microbicide.
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| 29. | The goal is to find a microbicide that would even allow a woman to become pregnant if she chooses, it added.
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| 30. | One advantage of a female-controlled microbicide, researchers noted, is that it might be used without telling a sex partner.
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