▁Apol lo ▁ 1 2 , ▁and ▁Apol lo ▁ 1 4 , ▁were ▁quar ant ined ▁( in ▁each ▁case ▁for ▁a ▁total ▁of ▁ 2 1 ▁days ) ▁after ▁returning ▁to ▁Earth , ▁initially ▁where ▁they ▁were ▁recovered ▁and ▁then ▁being ▁transferred ▁to ▁the ▁L un ar ▁Rece iving ▁Labor atory , ▁to ▁prevent ▁possible ▁inter plan et ary ▁cont am ination ▁by ▁micro organ isms ▁from ▁the ▁Moon . ▁All ▁lun ar ▁samples ▁were ▁also ▁held ▁in ▁the ▁bio secure ▁environment ▁of ▁the ▁L un ar ▁Rece iving ▁Labor atory ▁for ▁initial ▁ass ay . ▁ ▁Y ug oslav ia , ▁ 1 9 7 2 ▁( small po x ) ▁The ▁ 1 9 7 2 ▁Y ug oslav ▁small po x ▁out break ▁was ▁the ▁final ▁out break ▁of ▁small po x ▁in ▁Europe . ▁The ▁World ▁Health ▁Organ ization ▁fought ▁the ▁out break ▁with ▁extensive ▁quar antine , ▁and ▁the ▁government ▁instit uted ▁mart ial ▁law . ▁ ▁Case ▁of ▁Ka ci ▁H ick ox ' ▁return ▁to ▁US , ▁ 2 0 1 4 ▁( E bol a ) ▁In ▁ 2 0 1 4 , ▁Ka ci ▁H ick ox , ▁a ▁Do ctors ▁Without ▁B orders ▁nur se ▁from ▁Maine , ▁leg ally ▁batt led ▁ 2 1 - day ▁quar ant ines ▁im posed ▁by ▁the ▁states ▁of ▁New ▁Jersey ▁and ▁Maine ▁after ▁returning ▁home ▁from ▁tre ating ▁E bol a ▁patients ▁in ▁Sierra ▁Le one . ▁" H ick ox ▁was ▁se