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What is likely to be the first dengue vaccine on the market has shown encouraging results in a clinical trial in Latin America, cutting disease incidence in recipients by 60.8%, its developer announced yesterday. The vaccine could be approved for use as early as next year; then, dengue-affected countries would face a tough decision in weighing whether the limited protection it confers will be worth the vaccine's cost. [Source: Science/AAAS News]
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