Overuse of antibiotics can lead to drug-resistant bacteria that have to be treated with more powerful and often more expensive drugs. And sometimes there are no drugs that work effectively, which increases the danger to people who are infected. The U.S. campaign for the smart use of antibiotics parallels similar efforts in Europe and Canada, which Hicks says underscores the international nature of the threat." Resistant bacteria don't respect country or national boundaries and can easily travel on planes. Antibiotic resistance anywhere is really antibiotic resistance everywhere."

　參考答案：

　　過度使用抗生素會導(dǎo)致耐藥菌，而這些細(xì)菌要得到治愈就必須使用藥效更強(qiáng)大，通常也更昂貴的藥物。有時甚至找不到有效的藥物，這樣會增加受感染人群的危險(xiǎn)性。美國有關(guān)合理使用抗生素的活動產(chǎn)生了和歐洲及加拿大相似的效果，希克斯強(qiáng)調(diào)了這一威脅的國際性。“耐藥菌不會受國家.國界的限制，它們能通過飛機(jī)進(jìn)行肆意的傳播。如果任何一個地方產(chǎn)生抗生素耐受性，那么整個世界到處都會有抗生素耐受性。”