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有關百日咳菌（Bordetella pertussis）的敘述，下列何者正確？ (A)檢出率最高為咽喉檢體，且必須注意低溫輸送 (B)於後疫苗時期感染此菌之族群只涵蓋青少年 (C)傳染性最高之時期為突發期（Paroxysmal stage） (D)與臨床症狀中造成纖毛無法正常運作，以排出氣管中之黏液相關之主要致病毒素為氣管毒 素（Tracheal cytotoxin）

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