一位病人傷口遭泥土污染。下列何項免疫注射為優先？

土壤中極易含有破傷風桿菌（Clostridium tetani）孢子，對於不潔且深層的傷口，若病人過去十年未接種破傷風疫苗，必須給予破傷風類毒素追加注射，預防破傷風感染。此為傷口處理的感染控制常規。其他疫苗如 B 型肝炎或流感與此急迫傷口處理無直接關聯。

Soil is highly likely to contain spores of Clostridium tetani. For dirty, deep wounds, if the client has not received a tetanus vaccine within the past ten years, a tetanus toxoid booster must be given to prevent tetanus infection. This is a routine infection-control measure in wound management. Other vaccines such as hepatitis B or influenza are not directly relevant to this acute wound care.

美國對於破傷風疫苗接種紀錄追蹤較完善；台灣在急診處理外傷時，常需病人提供過去接種史，若無法確認則建議追加。