But Taiwan is densely populated and hygiene here is still far from perfect. This creates the potential conditions for major epidemics of hepatitis A. Hence in the future everyone without antibodies may need to be vaccinated.
而台灣人口密集、衛生條件並不是頂好，是 A 型肝炎大流行的溫床，因此將來沒有抗體的族群都有必要施打預防針。