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总结
美国威斯康星大学麦迪逊分校等研究团队将可感染细菌的噬菌体送入国际空间站，在微重力与辐射等太空环境中进行多轮培养传代，使其在轨进化。样本返回地球后，实验对比显示部分“太空进化”噬菌体对目标细菌的感染与杀灭效率高于地面培养对照。研究者认为太空压力可能促使病毒更快获得适应性改变，为开发对抗抗生素耐药“超级细菌”的噬菌体疗法提供新路径，但机制解释与生物安全评估仍需进一步验证。
正文
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