Asymptomatic infection with the new coronavirus can generally be detected within 1 to 14 days, the specific time varies from person to person, and usually has a certain relationship with the individual’s physical condition, the length of the incubation period, and so on. 1. Individual constitution: patients with good constitution usually have stronger resistance, so the virus may not show clinical symptoms after invasion, which can be manifested as asymptomatic infection, and the detection time may be slightly delayed. If the patient’s health is poor, poor resistance, the number of viral vectors may also be more, so the detection time is relatively short, may be detected within 3 days. 2. Incubation period: the incubation period of the new coronavirus is usually 1 to 14 days, and the majority of infected patients show an incubation period of 3 to 7 days, while the incubation period of individual patients may be more than 14 days, reaching 24 days, which is relatively rare. Therefore, how long it takes for an asymptomatically infected person with Neocoronavirus to be detected is also related to the length of the incubation period of the virus. It is worth noting that asymptomatically infected people with Neocoronavirus are also contagious and isolation measures are recommended.