"101147676"^^ . "01147676-n"^^ . . . "101083275"@en-us . . . . "0"^^ . "0"^^ . . . . "ring containment"^^ . "a strategy of defense in cases of bioterrorism; vaccination only of people exposed and others who are in contact with them; \"ring containment is a proven method of halting a smallpox epidemic\""@en-us . . "ring containment"@en-us .