According to the current statistics, the new coronavirus cases are distributed nationwide, with the most serious area being Hubei, followed by Zhejiang and Guangdong, and there are confirmed and suspected cases in all provinces of the country. Therefore, during this outbreak, try not to go out, ventilate at home, wash your hands regularly, exercise more, and ensure nutritional intake, and wear a mask if you go out. Because there is an incubation period for novel coronavirus infection, and the incubation period is long, generally 3-7 days, the longest does not exceed 14 days, the incubation period is also contagious, so pay attention to protection.