During a new coronavirus outbreak, it is important to first ensure that you are healthy before returning to a shared room. It is important to find out if your roommate has symptoms such as fever and dry cough, has a history of undoubted exposure, is in quarantine, and if so, should not return. During shared housing, both parties should wear masks in common areas such as the kitchen, balcony, and living room to reduce the risk of infection. It is also important to reduce contact with roommates, and if something needs to be said in person, you need to keep a distance of more than 1 meter from each other. After returning from an outing, leave your shoes outside the door, wash your hands and hang the mask in a ventilated area before disinfecting items you take home.