Failing to open curtains fully makes people more likely to get sick, a new study suggests.

　　一项新的研究表明，窗帘不完全打开会让人更容易生病。

　　It found sunlight kills disease-causing bacteria that live in dust, while darker conditions let them thrive. The findings were published in the journal Microbiome.

　　研究发现，阳光可以杀死生活在灰尘中的致病细菌，而黑暗的环境则能使它们茁壮成长。研究结果发表在《微生物组》杂志上。

　　Researchers warned the problem also affects windowless offices.

　　研究人员警告说，这个问题也会影响到没有窗户的办公室。

　　Study leader Dr. Ashkaan Fahimipour said: “Humans spend most of their time indoors, where exposure to dust particles that carry bacteria, including pathogens that can make us sick, is unavoidable.”

　　研究负责人阿史卡安.法希米普尔博士说:“人类大部分时间都呆在室内，不可避免会接触到携带细菌和病菌的灰尘颗粒。”

　　“Therefore, it’s important to understand how features of buildings we occupy influence dust ecosystems and how this could affect our health.”

　　“因此，了解我们居住的建筑物特征如何影响尘埃生态系统，以及这将如何影响我们的健康是很重要的。”

　　His team at the University of Oregon created 11 identical miniature rooms and allowed in different levels of light. After 90 days, dark rooms had double the number of bacteria able to reproduce.

　　他在俄勒冈大学的团队创造了11个有着不同光线水平的相同大小的微型房间。90天后，暗室里能够繁殖的细菌数量增加了一倍。

　　Fahimipour added: “We hope that with further understanding we could design access to daylight in buildings such as schools, offices, hospitals and homes in ways that reduce the risk of dust-borne infections.”

　　法希米普尔补充说:“我们希望通过进一步的了解，可以在学校、办公室、医院和家庭这样的建筑中设计好使用日光的方式，减少灰尘传播型感染的风险。”