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A Unique Poo Cloud Follows You Around Everywhere You Go
The Cloud seems to be everywhere these days： On your com puter， phones， and now， your very own body. Well， sort of—because according to research out of the University of Oregon， every human possesses their own microbial cloud.
The participants sat alone inside a sanitized① chamber， each emitting②a unique combination of bacteria③. Most of t he subject s could be identified by their cloud within four hours， specifically by several groups of bacteria： Streptococcus （usually found in the mouth）， Propionibacterium（found on skin）， and Corynebacterium（also skin）. All participants had these bacteria， but the various combinations served to distinguish each person.
"We expected that we would be able to detect the human microbiome in the air around a person， but we were surprised to find that we could identify most of the occupants just by sampling their microbial cloud，" said lead author J ames F. Meadow， a postdoctoral researcher formerly from the Biology and the Built Environment Center at the University of Oregon.
"Our study suggests that bacterial emissions from a relatively inactive person， sitting at a desk for instance， hav e a strong influence on the bacteria circulat ing in an enclosed space and on surrounding surfaces."
This information sheds a new light on how an individual’s microbiome（（bacteria）） can spread to the surrounding environment. This means we may have a new mechanism for understanding the spread of infectious diseases， and may even have forensic applications by allowing scientists to trace where someone has been.
这团云似乎无处不在：它萦绕在你的电脑上、手机上，或者你的身体里。美国俄勒冈大学研究发现，每个人都有专属于他们自己的微细菌云。
每个被试者被单独放在一个消毒的小房间里，之后他们的身体就会开始向空气中发射一种独特的细菌。大部分被试者能在四小时内通过细菌云确定他们的身份，特别是通过几组细菌：通常在口腔里的链球菌、皮肤上的丙酸菌和棒状杆菌，要确认他们的身份真是so easy了。所有的被试者都有这些细菌，然而细菌们的不同组团方式使得每个人的身份得以区分。
“我们希望能检测到一个人周围空气中的微生物组来识别这个人，但是我们惊讶地发现我们只能通过微生物云样本识别大部分被试者。”文章作者原俄勒冈大学的生物学与建筑环境中心博士后研究员詹姆斯F.梅多说。
“我们的研究结果显示，当人处于不活跃状态时，细菌跑得可欢了。打个比方，一个坐在课桌旁的人，对他所处的封闭空间或周围物体表面的细菌的循环有很大的影响。”
这些信息为我们揭示了个人身上的细菌群是如何向四周环境扩散的。这就意味着我们对传染性疾病的传播有了新的理解机制。这项新发现也可以在司法层面上运用，
研究人员只需要采集环境中的气体，就可以对特定的人员进行追踪啦。
The Cloud seems to be everywhere these days： On your com puter， phones， and now， your very own body. Well， sort of—because according to research out of the University of Oregon， every human possesses their own microbial cloud.
The participants sat alone inside a sanitized① chamber， each emitting②a unique combination of bacteria③. Most of t he subject s could be identified by their cloud within four hours， specifically by several groups of bacteria： Streptococcus （usually found in the mouth）， Propionibacterium（found on skin）， and Corynebacterium（also skin）. All participants had these bacteria， but the various combinations served to distinguish each person.
"We expected that we would be able to detect the human microbiome in the air around a person， but we were surprised to find that we could identify most of the occupants just by sampling their microbial cloud，" said lead author J ames F. Meadow， a postdoctoral researcher formerly from the Biology and the Built Environment Center at the University of Oregon.
"Our study suggests that bacterial emissions from a relatively inactive person， sitting at a desk for instance， hav e a strong influence on the bacteria circulat ing in an enclosed space and on surrounding surfaces."
This information sheds a new light on how an individual’s microbiome（（bacteria）） can spread to the surrounding environment. This means we may have a new mechanism for understanding the spread of infectious diseases， and may even have forensic applications by allowing scientists to trace where someone has been.
这团云似乎无处不在：它萦绕在你的电脑上、手机上，或者你的身体里。美国俄勒冈大学研究发现，每个人都有专属于他们自己的微细菌云。
每个被试者被单独放在一个消毒的小房间里，之后他们的身体就会开始向空气中发射一种独特的细菌。大部分被试者能在四小时内通过细菌云确定他们的身份，特别是通过几组细菌：通常在口腔里的链球菌、皮肤上的丙酸菌和棒状杆菌，要确认他们的身份真是so easy了。所有的被试者都有这些细菌，然而细菌们的不同组团方式使得每个人的身份得以区分。
“我们希望能检测到一个人周围空气中的微生物组来识别这个人，但是我们惊讶地发现我们只能通过微生物云样本识别大部分被试者。”文章作者原俄勒冈大学的生物学与建筑环境中心博士后研究员詹姆斯F.梅多说。
“我们的研究结果显示，当人处于不活跃状态时，细菌跑得可欢了。打个比方，一个坐在课桌旁的人，对他所处的封闭空间或周围物体表面的细菌的循环有很大的影响。”
这些信息为我们揭示了个人身上的细菌群是如何向四周环境扩散的。这就意味着我们对传染性疾病的传播有了新的理解机制。这项新发现也可以在司法层面上运用，
研究人员只需要采集环境中的气体，就可以对特定的人员进行追踪啦。