Parents should use the "seven-step washing method" to guide their children to wash their hands scientifically with hand sanitizer or soap under running water.

When parents come back from going out when necessary, they should change into the clothes they wear when going out, take off the masks they use when going out, disinfect and wash their hands before making physical contact with their children.

Do indoor ventilation twice a day for 20~30 minutes each time. When the outdoor air quality is poor or the temperature is low, the air exchange times and time can be reduced.