It's not because some people don't survive childhood illnesses -- they do -- but they do not survive after the time that they reach about 45 years old and 50 years old.
たくさんの方が幼児期に病気で亡くなりますが それだけでなく45歳や50歳を 目前にして亡くなる人が後を絶ちません 一番働き盛りの時期ですよ