美国休斯敦大学药学院教授凯文·加里说:“对于健康的人来说,鞋子上的细菌并不会构成风险,或者说风险很小。”凯文·加里也是前述2017年研究报告的作者。塞克斯顿说,健康的人通常需要接触很多有害细菌菌株才会真正感染。
Another point is that most of us don't spend a lot of time on the ground, where shoe bacteria dwell. "The exposure makes the poison. So if you're not exposed to it, you're not going to get sick from it," Sexton said. In some cases, layers of bacteria coating the floor can become "re-aerosolized" and enter the air we breathe, lifted by the draft from a window, for instance, Sexton explained. That might increase infection risk. But the greatest threat really lies on the ground. "I'd be more worried about a child crawling around on the floor. For a healthy adult, it's not too big of an issue," Sexton said.
另一点是,大多数人不会在地面上待很久,而地面正是鞋子携带细菌的主要聚集场所。塞克斯顿说:“接触才会导致感染。所以如果你没有接触,就不会因此生病。”他解释说,在某些情况下,地面上覆盖的一层细菌可能会因从窗外进来的一股气流而“重新雾化”,从而进入我们呼吸的空气。这可能增加感染风险。但最大的威胁实际上还是在地面上。他说:“我更担心的是在地板上爬来爬去的孩子。而对于健康的成年人来说,这不是太大的问题。”
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