Health officials review smallpox plan.
D023482:Bioterrorism; D002487:Centers for Disease Control and Prevention, U.S.; D006801:Humans; D012899:Smallpox / Q000517:prevention & control* / Q000635:transmission; D012900:Smallpox Vaccine / Q000600:supply & distribution*; D014481:United States
D012900:Smallpox Vaccine