護理師在社區課程中教導免疫接種。關於疫苗接種，下列哪些敘述正確？（選所有適合的）
A nurse is teaching a community class about immunization. Which statements are correct regarding vaccination? (Select all that apply.)
- AVaccines create herd immunity✓ 正解疫苗可建立群體免疫
- BVaccines provide lifelong protection for all illnesses疫苗對所有疾病提供終身保護
- CVaccines are a primary prevention strategy✓ 正解疫苗是一種初級預防策略
- DVaccines are only effective for children疫苗僅對兒童有效
- EVaccines help prevent the spread of infectious diseases✓ 正解疫苗有助於防止傳染病的傳播
疫苗接種是公共衛生中最有效的初級預防（Primary Prevention）策略。透過引入抗原刺激免疫系統產生抗體，不僅保護個體，當接種率達到一定比例時，還能形成「族群免疫（Herd immunity）」，保護無法接種疫苗的脆弱族群。護理師應釐清疫苗的預防性質，並強調其對各年齡層的重要性，而非僅限於兒童。
Vaccination is one of the most effective primary prevention strategies in public health. By introducing antigens that stimulate the immune system to produce antibodies, vaccines not only protect the individual but, when vaccination rates reach a sufficient level, also produce herd immunity, which protects vulnerable individuals who cannot be vaccinated. Nurses should clarify the preventive nature of vaccines and emphasize their importance across all age groups, rather than only for children.