. "The Man in Black is a prisoner of quarantine, because the Island's healing properties provide (mostly) a vaccination effect against the virus / plague the Man in Black is carrying. If the Man in Black were able to escape the Island, this would result in a worldwide and lethal pandemic and make the possible reunion of the Kwon family, as suggested by Widmore, a \"short-lived\" one. Physical contact with the Man in Black / Smoke Monster will result in contagion (e.g. Rousseau's team) with only those previously touched by Jacob or subsequently Richard (the Others) remaining immune."@en . "The Man in Black is a prisoner of quarantine, because the Island's healing properties provide (mostly) a vaccination effect against the virus / plague the Man in Black is carrying. If the Man in Black were able to escape the Island, this would result in a worldwide and lethal pandemic and make the possible reunion of the Kwon family, as suggested by Widmore, a \"short-lived\" one. Physical contact with the Man in Black / Smoke Monster will result in contagion (e.g. Rousseau's team) with only those previously touched by Jacob or subsequently Richard (the Others) remaining immune."@en . "The Sickness/Theories"@en . .