Why is it 14 days for medical observation?

At present, it is necessary to take more stringent medical observations and other preventive public health measures for close contacts. This is a responsible attitude towards public health and safety, and is also a common practice in the international community. With reference to the incubation period of other coronaviruses, relevant information on this new coronavirus case and the actual prevention and control, the medical observation period of close contacts is set at 14 days, and home medical observation is conducted on close contacts.