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北京雾霾中发现耐药基因 专家:没任何必要恐慌

2016-11-27 05:25:20   

北京的雾霾天气

国际期刊《微生物》发表瑞典哥德堡大学抗生素耐药性研究中心主任拉森团队的最新研究报告指出,北京空气中的微生物群落含有的已知抗生素耐药性基因种类,在被研究城市中最多,平均有64.4种。令人震惊的是,在北京的空气中发现了碳青霉烯类抗生素的耐药性基因。

针对这一研究,近日网上流传消息称,这意味着人类对付细菌感染性疾病的防线失守。真是这样吗?科技日报记者采访了多位专家,认为这是一种误读。

  三条件都成立吸入细菌才可能生病

“这份报告提到的北京雾霾样本中的抗生素耐药基因不能说明任何问题,人们没有必要对此有任何恐慌”。拉森教授反复强调,北京雾霾样本中检测出的抗生素耐药基因是使细菌对抗生素产生耐药性的基因,只会存在于细菌上面,并不会使人类对抗生素产生耐药性。只有全部满足以下三个条件时,含有这种基因的细菌才会令人担忧:一是证明这种细菌属于可以引发疾病的细菌;二是这种细菌在空气中具有活性;三是空气中存在极大数量的此种细菌。

只有三个条件完全成立,人们才可能因为吸入空气中的细菌而生病。

根据《微生物》上发表的这份报告,北京雾霾样本中的细菌是否具有活性还有待进一步研究。拉森教授表示,“大多数细菌在空气中会因为食物不足而死亡。”

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