▁She ▁took ▁temporary ▁leave ▁from ▁Al aska ▁to ▁do ▁post - grad uate ▁work ▁at ▁North western ▁University ▁in ▁Chicago ▁in ▁ 1 9 1 8 , ▁and ▁surv ived ▁an ▁influen za ▁bout ▁while ▁in ▁San ▁Francisco . ▁The ▁global ▁ 1 9 1 8 ▁flu ▁pan demic ▁killed ▁an ▁estimated ▁ 3 0 – 5 0 ▁million . ▁ ▁The ▁pan demic ▁spread ▁to ▁Al aska ▁in ▁the ▁fall ▁of ▁ 1 9 1 8 , ▁and ▁last ed ▁until ▁the ▁spring ▁of ▁ 1 9 1 9 . ▁ ▁Hop ing ▁to ▁stem ▁the ▁spread , ▁Governor ▁Thomas ▁R ig gs , ▁Jr . ▁im posed ▁a ▁mar itime ▁quar antine ▁on ▁the ▁territory . ▁The ▁In uit ▁population ▁was ▁hard ▁hit , ▁partially ▁due ▁to ▁prefer ring ▁traditional ▁medic ines , ▁and ▁partially ▁from ▁fear ▁of ▁western ▁hosp it als . ▁In ▁some ▁cases , ▁entire ▁communities ▁were ▁dec im ated . ▁Dr . ▁H ale ▁in ▁Cord ova ▁died ▁as ▁a ▁result ▁of ▁the ▁pan demic , ▁and ▁Me use bach – Z esch ▁purchased ▁his ▁equipment ▁for ▁her ▁office . ▁ ▁When ▁co pper ▁min ing ▁began ▁to ▁decl ine ▁in ▁Cord ova , ▁she ▁moved ▁her ▁practice ▁to ▁An ch orage ▁where ▁she ▁also ▁began ▁to ▁work ▁with ▁the ▁local ▁P TA ▁to ▁improve ▁dent al ▁care ▁for ▁children . ▁In ▁ 1 9 2 3 , ▁she ▁closed ▁her ▁An ch orage ▁practice ▁to ▁study ▁at ▁Columbia ▁University ▁in ▁New ▁York ▁through ▁the ▁end ▁of