The Ebola virus is a highly infectious, often fatal agent spread through direct contact with bodily fluids.

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The deaths have stoked heightened fear of the virus, a highly infectious, often fatal agent spread through direct contact with bodily fluids.

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This reasoning stems from the fact that Dbouk was in direct contact with Hassan Hilu Laqis, a Hezbollah agent operating out of Lebanon who managed many of the procurement projects in North America.

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In a two-page ruling, Ito found that Whitehurst has "no direct or specific knowledge" concerning the testing done by fellow agent Roger Martz in the case.

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"Preliminary information indicates the agent took actions to defend himself, " said a federal law enforcement official with direct knowledge of the case.

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