At present, the new coronavirus definitely has an incubation period, and it was found that it takes 4 days to be detected in the human respiratory tract when clinical trials were conducted. Now, it is basically the same as the clinical observation that the incubation period should be 3-7 days, with an average of more 4-5 days. However, during clinical summarization, it was also found that the incubation period of some people could reach 14 days, and there were even a few cases exceeding 14 days, within 28 days, the average time is still mainly 3-7 days. The incubation period is the highest priority, and care must be taken when isolating, if exposed to the pathogen in question, to prevent themselves from contacting others during this period, and to be aware of other signs of illness when resting at home. Source: Dr. Yurai