Neighbors with new crown openings may get infected, but the probability of this happening is relatively small. The new crown virus transmission channels include respiratory droplet transmission, but the droplet transmission distance is shorter, usually about 1 to 2 meters, and will not float in the air for a long time. If the neighbor’s house is far away, opening the window for ventilation will not have a greater impact. If the windows of the two homes are next to each other, such as window to window, and the windows of both homes are open at the same time, and the neighbor is coughing right into the window, the distance is shorter and there may be a risk of infection. The new coronavirus can be transmitted through aerosols. There may be air cross-flow with windows open for ventilation, but the concentration of contaminated air generally does not reach the concentration of aerosol infectious conditions, so the chance of being infected by opening a window for ventilation is small when there is a certain distance from the neighbor’s house.