On Tuesday, a man exposed to Ebola while traveling in Africa has been hospitalized in a Dallas hospital, CDC officials confirmed. According to the CDC, the symptoms developed 4 days after his flight here from Liberia. The man was not feverish when he boarded the plane. Ebola is spread by direct contact and not by air and only while patients are sick and not beforehand while carrying the virus. This is the first ever diagnosed case in the U.S.
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