Ground zero: Ebola.
Dowell
S
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D002487:Centers for Disease Control and Prevention, U.S.; D015023:Democratic Republic of the Congo / Q000453:epidemiology; D004196:Disease Outbreaks; D019142:Hemorrhagic Fever, Ebola / Q000453:epidemiology / Q000635:transmission*; D006801:Humans; D014481:United States