第1829期:House dust full of bacteria

A genetic analysis revealed that the average household had more than 2,000 species of fungi. The types of fungus found though depended on the home's location, suggesting these minute organisms are drifting in from outside.基因分析显示，平均每个家庭拥有超过 2,000 种真菌。 发现的真菌类型取决于房屋所在的位置，这表明这些微小的生物体是从外面飘进来的。The researchers also discovered an average 7,000 different types of bacteria per household. But the species varied according to whether men or women were the main residents or whether they lived with cats or dogs.研究人员还发现每个家庭平均有 7,000 种不同类型的细菌。 但物种因男性或女性是主要居民或他们是否与猫或狗一起生活而有所不同。Although the study was carried out in the US, the scientists say the findings are also relevant around the world.尽管这项研究是在美国进行的，但科学家们表示，这些发现在世界各地也具有相关性。词汇表genetic analysis 基因分析household 家庭fungi （复数）真菌organisms 生物bacteria （复数）细菌species 物种，种类