7 , ▁contacts ▁between ▁Fun ai ▁and ▁the ▁Mat is ▁were ▁becoming ▁frequent ▁and ▁the ▁Mat is ▁people ▁had ▁already ▁suffered ▁many ▁cases ▁of ▁the ▁flu . ▁ ▁The ▁spread ▁of ▁foreign ▁dise ases ▁like ▁influen za ▁and ▁meas les ▁intens ified ▁with ▁the ▁growing ▁presence ▁of ▁rub ber ▁t app ers ▁and ▁log gers ▁in ▁the ▁region , ▁and ▁lack ▁of ▁warning ▁and ▁medical ▁aid ▁from ▁the ▁I AP . ▁Deb ates ▁surr ound ▁the ▁actual ▁number ▁of ▁ind igen ous ▁Mat is ▁that ▁died ▁from ▁expos ure ▁to ▁foreign ▁disease , ▁but ▁probable ▁figures ▁state ▁that ▁ 3 5 - 5 0 % ▁of ▁the ▁population ▁succ um bed , ▁with ▁children ▁and ▁el ders ▁sever ely ▁impact ed . ▁The ▁Mat is ▁were ▁later ▁re located ▁by ▁Fun ai ▁to ▁the ▁Bo e iro ▁cre ek ▁region , ▁and ▁this ▁change ▁of ▁location ▁couple d ▁with ▁the ▁change ▁in ▁dem ograph ics ▁caused ▁the ▁group ▁to ▁fragment ▁into ▁two ▁distinct ▁groups ▁which ▁are ▁still ▁present ▁today . ▁A ▁new ▁scarc ity ▁of ▁available ▁ing red ients ▁for ▁prepar ing ▁traditional ▁subst ances ▁for ▁hunting ▁and ▁rit ual ▁caused ▁the ▁group ▁to ▁change ▁from ▁highly ▁mot ile ▁to ▁pre domin antly ▁sed ent ary , ▁and ▁created ▁much ▁conflict ▁within ▁the ▁group . ▁ ▁Al ong ▁with ▁the ▁introduction ▁of ▁ill ness ▁to ▁ind igen ous ▁Mat is ▁communities , ▁there ▁has ▁been ▁recent ▁conflict ▁between ▁the ▁Mat is ▁and ▁Kor ub o ▁communities ▁living ▁in ▁the ▁V ale ▁do ▁J