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Aids Vaccine Trial fails

Disappointment over failure of Aids vaccine trial

Researchers are disappointed at the failure of a trial vaccine against Aids, the fourth biggest killer in the world. How the deadly parasite Trypanosoma cruzi that causes Chagas disease mutates very quickly to become drug resistant. Rare Raso lark bird might die out as males have higher survival rate than females.

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23 minutes

麻豆社 World Service Archive

This programme was restored as part of the World Service archive project

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