But in the case of enteroviruses, the opposite seems to be true. None of the regions where enterovirus disease occurs are socalled backward regions--they are areas such as the USA, Taiwan and Malaysia where hygiene is considered to be relatively good.
但以腸病毒的例子來看，狀況卻又相反，放眼腸病毒發生的地區，都不是所謂的落後地區，而是在美國、台灣、馬來西亞等被認為衛生條件較佳的地區。