Close contacts are usually people who have had close contact with a person infected with the new coronavirus and have not taken any protective measures. Neocoronavirus is a new type of coronavirus, and infected people usually have symptoms such as fever, fatigue, and dry cough. Close contacts are people who have had close contact with these people and have not taken any measures, such as living in the same room or eating together in a closed environment, and so on. Close contacts should pay attention to good protective measures in daily life, such as wearing a good mask, pay attention to hygiene, do not go to crowded places, do not participate in the gathering activities, so as to reduce the spread of the virus. In daily life, they should pay attention to local news information and avoid going to the place where the outbreak occurs to prevent contact with the infection. If there is any physical discomfort, contact the local epidemic prevention personnel in a timely manner, and prohibit going out privately to prevent further spread.