— 健康促進與維護 · MEDIUM · MCQ —
護理師為家長舉行疫苗安全說明會，關於疫苗接種下列敘述何者正確？
A nurse is conducting a workshop for parents on vaccine safety. Which statement is accurate regarding immunizations?
- ANatural immunity through infection is safer than vaccine-induced immunity透過感染獲得的自然免疫力比疫苗誘導的免疫力更安全
- BVaccines undergo rigorous safety testing before approval✓ 正解疫苗在核准前經過嚴格的測試
- CMultiple vaccines at one visit can overwhelm an infant's immune system一次接種多種疫苗可能會使嬰兒的免疫系統超載
- DVaccines are no longer needed for diseases that are rarely seen對於罕見的疾病不再需要疫苗
— Explanation · 中文詳解 —
疫苗在上市前皆須通過多階段臨床試驗，安全性極高。嬰兒免疫系統極強，能同時處理多種抗原，不會過載。疾病罕見是因為群體免疫（herd immunity）的保護，一旦接種率下降，疾病即會死灰復燃。自然感染可能導致嚴重併發症，疫苗則是透過安全途徑誘導免疫記憶。
Vaccines undergo rigorous safety testing and regulatory review before approval, ensuring they are safe for public use. The infant immune system is capable of handling multiple antigens simultaneously, and vaccines provide safer immunity compared to natural infection.
✦ 台美臨床差異
美國有較多反疫苗運動（anti-vaxxer），護理師需花更多時間溝通；台灣民眾對常規疫苗接種接受度普遍較高。