下列哪項屬於流感的初級預防措施？
Which action is a primary prevention measure for influenza?
- AMonitoring respiratory rate during infection感染期間監測呼吸頻率
- BAnnual influenza vaccination✓ 正解年度流感疫苗接種
- CAdministering antiviral medication給予抗病毒藥物
- DTreating symptoms with fever reducers使用退燒藥治療症狀
初級預防（Primary Prevention）的定義在於「疾病發生前」採取行動以降低風險，目標是透過健康促進或保護性措施防止疾病發生。疫苗接種透過誘發免疫反應，使個體在暴露於病原體前即具備防禦能力，完全符合初級預防架構。護理師在臨床教學時，應區分初級（預防）、二級（篩檢/早期治療）與三級（復健/預防惡化）預防的不同。
Primary prevention is defined as actions taken 'before disease occurs' to reduce risk, with the goal of preventing disease through health promotion or protective measures. Vaccination, by inducing an immune response, equips the individual with defenses before exposure to a pathogen, fully aligning with the framework of primary prevention. When providing clinical teaching, the nurse should distinguish between primary (prevention), secondary (screening/early treatment), and tertiary (rehabilitation/prevention of deterioration) prevention.