New coronavirus infection caused by new coronavirus pneumonia, aggregated epidemic means that the virus carriers or patients who have been diagnosed with new coronavirus pneumonia can be in close contact with normal adults, such as in cafeterias, restaurants or in close contact with family members in the home, the virus can be transmitted to normal adults, this phenomenon is called aggregated epidemic. Therefore, we should try to go out and wear masks as little as possible, while reducing access to public places and gatherings, often keep indoor and outdoor air circulation, wash hands regularly, increase nutrition and strengthen physical fitness, can reduce and prevent the possibility of new coronavirus infection.