發佈日期：2022/08/01更新日期：2026/06/04
標題：Why is it important to get a COVID-19 booster shot (third dose)?
內容：
As COVID-19 vaccines lose their effectiveness over time and new variants of the disease continue to emerge, a booster shot helps to reduce the risk of breakthrough infection and the probability of serious illness. Members of the public are advised to get a booster 12 weeks after their second dose of a COVID-19 vaccine.