The incubation period of the new coronavirus infection that is, the patient is infected with the new coronavirus, the test is positive, but there is no morbidity manifestations. Through their own active management, such as eating Chinese medicine or their own resistance is relatively strong, so that the virus in the patient’s body gradually subside, that is, the incubation period will be carriers. If the patient does not realize that he or she is a carrier, and does not pay attention to the regular life or active use of drugs, the onset of the disease will gradually appear the typical symptoms of the new coronavirus infection, such as fever, respiratory tract infections, cough and so on. If latent carrier patients do not realize that they are carriers, they may come into contact with normal people, which can cause morbidity in susceptible people. If severe lung infection occurs it may lead to death of the patient. Therefore, for people who have lived in infected areas or have had contact with infected patients, it is important to raise self-awareness, go for testing in time, and use Chinese herbal medicine for prevention, so that they can return to a normal state from a latent state, and prevent further morbidity through control. Source: Dr. Yurai