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Estimates of Outbreak Risk from New Introductions of Ebola with Immediate and Delayed Transmission Control
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Aug 2015
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Source: Emerg Infect Dis. 21(8):1402-1408.
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Alternative Title:Emerg Infect Dis
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Description:While the ongoing Ebola outbreak continues in the West Africa countries of Guinea, Sierra Leone, and Liberia, health officials elsewhere prepare for new introductions of Ebola from infected evacuees or travelers. We analyzed transmission data from patients (i.e., evacuees, international travelers, and those with locally acquired illness) in countries other than the 3 with continuing Ebola epidemics and quantitatively assessed the outbreak risk from new introductions by using different assumptions for transmission control (i.e., immediate and delayed). Results showed that, even in countries that can quickly limit expected number of transmissions per case to <1, the probability that a single introduction will lead to a substantial number of transmissions is not negligible, particularly if transmission variability is high. Identifying incoming infected travelers before symptom onset can decrease worst-case outbreak sizes more than reducing transmissions from patients with locally acquired cases, but performing both actions can have a synergistic effect.
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Pubmed ID:26196264
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Pubmed Central ID:PMC4517734
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Volume:21
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Issue:8
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