“事实上，烘手机会产生一种喷雾，污染卫生间各处，包括烘手机本身以及水池、地板和其他表面，这取决于烘手机的设计和安放位置。如果人们接触这些表面，他们可能会被细菌或病毒污染。”

The study looked at bacterial spread in a real world setting -- in two toilets in each of three hospitals, which were in the UK, France and Italy.

这项研究分析了真实世界中的细菌传播场景--科研人员在三家医院各选择了两间卫生间，这三家医院分别位于英国、法国和意大利。

Each of the toilets had paper towel dispensers and jet air dryers, but only one of these was in use on any given day.

每个卫生间都有纸巾取用器和喷气式烘手机，但在特定的一天只有一台设备可用。

On each day, over 12 weeks, levels of bacterial contamination in the toilets were measured, allowing comparisons to be made when either paper towels or jet air dryers were in use.

在超过12周的试验期内，每一天，科研人员都会测量卫生间内细菌污染水平，将使用纸巾和使用喷气式烘手机的情况进行对比。

Samples were taken from the floors, air and surfaces in each of the toilets. The main target bacteria were Enterobacteria including Escherichia coli or E.coli, which cause a wide range of infections including gastroenteritis, pneumonia and septicaemia, and enterococci -- bacteria that can cause difficulty when treating infections.

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