Pedzisa mutsara unotevera: MuSouth Pacific, Gavhuna weAmerican Samoa, John Martin Poyer, akaisa "cordon sanitaire" yezvitsuwa kubva kuzvikepe zvose zvinouya, achibudirira kuwana rufu rwusina chinhu mukati menharaunda panguva yechirwere chefuruwenza. Mukupesana, vavakidzani
Western Samoa inodzorwa neNew Zealand yaiva pakati penzvimbo dzakarohwa zvakanyanya, ine mwero we90% wehutachiona uye inopfuura 20% yevakuru vayo vakafa nechirwere ichi.