Texas authorities are taking measures to prevent the spread of Ebola after the virus sickened a Liberian visitor to the city of Dallas. Four people he was visiting have been quarantined in their apartment for three weeks and will be monitored for fever and other Ebola symptoms. Health officials are checking local schools to make sure they are safe. Zlatica Hoke reports the first U.S.-diagnosed Ebola case is sparking fear that the virus might spread in the United States.

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