ous ▁gen ot ypes ▁are : ▁~ 3 5 % ▁in ▁native ▁Cab oc lo ▁of ▁Brazil , ▁ 3 0 % ▁in ▁Chinese , ▁ 2 8 % ▁in ▁Kore ans , ▁ 1 1 % ▁in ▁Th ai ▁people , ▁ 7 % ▁in ▁Malays ians , ▁ 3 % ▁in ▁n atives ▁of ▁India , ▁ 3 % ▁in ▁Hung ari ans , ▁and ▁ 1 % ▁in ▁Filip inos ; ▁percent ages ▁are ▁essentially ▁ 0 ▁in ▁individuals ▁of ▁Native ▁African ▁descent , ▁C au cas ians ▁of ▁Western ▁European ▁descent , ▁Tur ks , ▁Australian ▁Ab orig ines , ▁Austral ians ▁of ▁Western ▁European ▁descent , ▁Swedish ▁L apps , ▁and ▁Al ask an ▁E skim os . ▁ ▁While ▁the ▁pre val ence ▁of ▁fl ushing ▁re actions ▁is ▁high ▁in ▁those ▁non - J apan ese ▁populations ▁that ▁have ▁a ▁high ▁pre val ence ▁of ▁the ▁gl u 4 8 7 ly s ▁gen ot ype , ▁the ▁percent ages ▁of ▁these ▁non - J apan ese ▁individuals ▁with ▁the ▁gl u 4 8 7 ly s ▁alle le ▁who ▁experience ▁resp ir atory ▁sympt oms , ▁particularly ▁ast hm atic ▁ex ac erb ations , ▁has ▁yet ▁to ▁be ▁defined . ▁ ▁Al co hol - indu ced ▁resp ir atory ▁sympt oms ▁result ▁from ▁a ▁wide ▁range ▁of ▁interact ing ▁gen etic , ▁met abol ic , ▁environmental , ▁and ▁social ▁factors ▁ ▁These ▁interact ing ▁factors ▁are ▁likely ▁to ▁vary ▁from ▁one ▁national